#reverse number

#while_loop
n = int(input("enter the value: "))

rev = 0

while n != 0:
rem = n%10
rev = rev*10 + rem
n = n//10
print("Reverse number",rev)

#Reverse floyd's Triangle
n = int(input("nunber of rows: "))
k = 0
for i in range(n):
k = k + i
m = n + k
for i in range(n):
for j in range(i+1):
print(m,end=" ")
m = m - 1
print()