#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int i1,sum=1; for(i1=1;i1<=5;i1++) { sum=sum*i1; } cout<<sum<<endl; return 0; }