#include <iostream>
#include <vector>
#include <string>
#include <unordered_map>
using namespace std;
class UnionFind {
public:
    UnionFind(int size) {
        parent.resize(size);
        for (int i = 0; i < size; ++i) {
            parent[i] = i;
        }
    }

    int find(int u) {
        if (parent[u] != u) {
            parent[u] = find(parent[u]); 
        }
        return parent[u];
    }

    void unionSets(int u, int v) {
        parent[find(u)] = find(v); 
    }

private:
    vector<int> parent;
};

bool can_transform(int n, int d, const string& mantra, const string& curse) {
    if (mantra.length() != curse.length()) {
        return false; 
    }

    UnionFind uf(n);

    for (int i = 0; i < n; ++i) {
        if (i + d < n) {
            uf.unionSets(i, i + d);
        }
        if (i + d + 1 < n) {
            uf.unionSets(i, i + d + 1);
        }
    }

    unordered_map<int, unordered_map<char, int>> mantraGroups;
    unordered_map<int, unordered_map<char, int>> curseGroups;

    for (int i = 0; i < n; ++i) {
        int root = uf.find(i);
        mantraGroups[root][mantra[i]]++;
        curseGroups[root][curse[i]]++;
    }

    for (const auto& entry : mantraGroups) {
        int root = entry.first;
        if (mantraGroups[root] != curseGroups[root]) {
            return false; 
        }
    }

    return true; 
}

int main() {
    int n, d;
    string mantra, curse;
    cin >> n >> d >> mantra >> curse;

    if (can_transform(n, d, mantra, curse)) {
        cout << "yes" << endl;
    } else {
        cout << "no" << endl;
    }

    return 0;
}

#include <iostream>
#include <vector>
#include <unordered_map>
#include <queue>
#include <climits>
using namespace std;

class Solution {
public:
    vector<vector<int>> constructGridLayout(int n, vector<vector<int>>& edges) {
    vector<vector<int>> adj(n);
        for(int i = 0; i < edges.size(); i++){
            adj[edges[i][0]].push_back(edges[i][1]);
            adj[edges[i][1]].push_back(edges[i][0]);
        }
        vector<int> dig(n,0);
        for(int i = 0; i < n; i++){
            for(auto val : adj[i]) dig[val]++;
        }

        int root = 0;
        for(int i = 0; i < n; i ++){
            if(dig[root] > dig[i]) root = i;
        }
        // cout<<root;
        vector<int> vis(n,0);
        vis[root] = 1;

        vector<int> row1;
        int x = adj[root][0];
        if(adj[root].size() == 2){
            if(dig[x] > dig[adj[root][1]]) x = adj[root][1];
        }
        row1.push_back(root);
        row1.push_back(x);
        vis[x] = 1;
        while(dig[root] != dig[x]){
            int d = 5;
            int k = INT_MAX;
            for(auto val : adj[x]){
                if(vis[val] == 0){
                    if(dig[val] < d) {
                        k = val;
                        d = dig[val];
                    }
                }
            }
            if(k == INT_MAX) break;
            vis[k] = 1;
            row1.push_back(k);
            x = k;
        }

        // for(auto val : row1) cout<<val<<" ";
        // cout<<endl;
        // for(auto val : vis) cout<<val<<" ";

        int c = row1.size();
        int r = n / c;

        vector<vector<int>> ans(r, vector<int>(c,0));
        for(int i = 0; i < c; i++) ans[0][i] = row1[i];
        
        for(int i = 1; i < r; i++){
            for(int j = 0; j < c; j++){
                for(auto val : adj[ans[i-1][j]]){
                    if(vis[val] == 0){
                        vis[val] = 1;
                        ans[i][j] = val;
                        break;
                    }
                }
            }
        }


        return ans;
    }
};

#include <iostream>
#include <cmath>
#include <vector>
using namespace std;
const long long MOD = 1e9 + 7;
long long basicForm(long long A) {
    long long B = 1;
    for (long long i = 2; i * i <= A; i++) {
        if (A % i == 0) {
            B *= i;
            while (A % i == 0) {
                A /= i;
            }
        }
    }
    if (A > 1) {
        B *= A;  
    }
    return B;
}

long long countDivisors(long long n) {
    long long divisors = 1;
    for (long long i = 2; i * i <= n; i++) {
        if (n % i == 0) {
            int count = 0;
            while (n % i == 0) {
                n /= i;
                count++;
            }
            divisors *= (count + 1);
        }
    }
    if (n > 1) {
        divisors *= 2;  
    }
    return divisors;
}

long long findD(long long A) {
    long long B = basicForm(A);
    long long C = 1;
    for (long long i = 1; i * i <= B; i++) {
        if (B % i == 0) {
            C = (C * i) % MOD; 
            if (i != B / i) {
                C = (C * (B / i)) % MOD;  
            }
        }
    }

    long long D = countDivisors(C);
    return D;
}

int main() {
    long long A;
    cin >> A;
     cout << findD(A) << endl;
    return 0;
}

#include <iostream>
#include <unordered_set>
#include <vector>
using namespace std;
vector<bool> solution(int n, vector<vector<int>>queens, vector<vector<int>>queries) {
    unordered_set<int> a, b, cs, d;
        for (const auto &queen : queens) {
        int r = queen[0], c = queen[1];
        a.insert(r);                 
        b.insert(c);                
        cs.insert(r - c);       
        d.insert(r + c);        
    }
    vector<bool> r;
    for (const auto &query : queries) {
        int r_q = query[0], c_q = query[1];
        bool u = (a.count(r_q) > 0 || b.count(c_q) > 0 ||  cs.count(r_q - c_q) > 0 || d.count(r_q + c_q) > 0);
        r.push_back(u);
    }
    return r;
}

def p(packet):
    bitmask = 0
    for ch in packet:
        bitmask |= (1 << (ord(ch) - ord('a')))
    return bitmask

def ss(packets):
    n = len(packets)
    bitmasks = [p(p) for p in packets]
    lengths = [len(p) for p in packets]
    m = 0
    for i in range(n):
        for j in range(i + 1, n):
            if (bitmasks[i] & bitmasks[j]) == 0:
                m = max(m, lengths[i] * lengths[j])
    return m
num = int(input())
packets = [input() for _ in range(num)]
result = ss(packets)
print(result)

def ss(cipherCode):
    digits = list(str(abs(cipherCode)))
    digits.sort()
    if digits[0] == '0':  
        for i in range(1, len(digits)):
            if digits[i] != '0':
                digits[0], digits[i] = digits[i], digits[0]
                break
    d = int(''.join(digits))
    if cipherCode < 0:
        d = -d
    print(d)
cipherCode = int(input())
ss(cipherCode)

#include <bits/stdc++.h>
using namespace std;

int countPowerNumbers(int l, int r) {
    vector<long long> pows;
    pows.push_back(0);
    pows.push_back(1);

    for (int p = 2; p < 25; p++) {
        long long num = 2;
        while ((long long)(pow(num, p) + 0.5) <= r) {
            pows.push_back((long long)(pow(num, p) + 0.5));
            num++;
        }
    }

    vector<int> ok(r + 1, 0);

    for (int i = 0; i < pows.size(); i++) {
        for (int j = 0; j < pows.size(); j++) {
            if (pows[i] + pows[j] <= r && pows[i] + pows[j] >= l) {
                ok[pows[i] + pows[j]] = 1;
            }
        }
    }

    for (int i = 0; i <= r; i++) {
        ok[i] += ok[i - 1];
    }

    return ok[r] - ok[l - 1];
}

#include <stdio.h>
struct CompanyProfile {
    char company[11];      
    int days_in_operation; 
};

const char* oldest(struct CompanyProfile profiles[], int n) {
    int max_days = -1;
    const char* oldest_company = "";
    
    for (int i = 0; i < n; i++) {
        if (profiles[i].days_in_operation > max_days) {
            max_days = profiles[i].days_in_operation;
            oldest_company = profiles[i].company;
        }
    }
    
    return oldest_company;
}
float average_age(struct CompanyProfile profiles[], int n) {
    int total_days = 0;
    
    for (int i = 0; i < n; i++) {
        total_days += profiles[i].days_in_operation;
    }
    
    return (float)total_days / n;
}

#include <stdio.h>
#include <limits.h>  
struct Classroom {
    int n;        
    int grades[103]; 
};

void maximum(struct Classroom obj) {
    int max_grade = INT_MIN;
    for (int i = 0; i < obj.n; i++) {
        if (obj.grades[i] > max_grade) {
            max_grade = obj.grades[i];
        }
    }
    printf("%d\n", max_grade); 
}

void second_maximum(struct Classroom obj) {
    int max_grade = INT_MIN, second_max = INT_MIN;
    
    for (int i = 0; i < obj.n; i++) {
        if (obj.grades[i] >= max_grade) {
            second_max = max_grade;
            max_grade = obj.grades[i];
        } else if (obj.grades[i] > second_max && obj.grades[i] < max_grade) {
            second_max = obj.grades[i];
        }
    }

    if (second_max == INT_MIN) {
        printf("%d\n", max_grade);
    } else {
        printf("%d\n", second_max);
    }
}

void Find_Xor(struct Classroom obj) {
    int xor_result = 0;
    for (int i = 0; i < obj.n; i++) {
        xor_result ^= obj.grades[i]; 
    }
    printf("%d\n", xor_result);
}