class UserMainCode(object):
    @classmethod
    def stallchoices(cls, input1, input2, input3):
        count = 0
        for w, q in input2:
            if input3 % w == 0 and input3 // w <= q:
                count += 1
        return count

public class UserMainCode {
    public static int originalArray(int input1, int[] input2) {
        LinkedHashSet<Integer> set = new LinkedHashSet<>();
        for (int i : input2) set.add(i);
        return set.size();
    }

class UserMainCode(object):
    @classmethod
    def originalArray(cls, input1, input2):
        return len(dict.fromkeys(input2))