Snuke loves working out. He is now exercising N times.  Before he starts exercising, his _power_ is 1. After he exercises for the i-th time, his power gets multiplied by i.  Find Snuke's power after he exercises N times. Since the answer can be extremely large, print the answer modulo 10^{9}+7.
n=int(input())
ans=1
for i in range(1,n+1):
  ans=ans*i
print(ans//1000000007)
n=int(input())
ans=1
for i in range(1,n+1):
  ans=ans*i
  if ans>1000000007:
    ans=ans%1000000007
print(ans)