// USU Problem 1142
// Relation
// Done by Teh Ming Han

#include <iostream.h>

int main(){
    int i,n;
    unsigned long fact[10];

    fact[1] = 1;
    for (i=2;i<=10;i++)
        fact[i] = fact[i-1]*i;

    while (!cin.eof()){
        cin>>n;
        if (n>=1) cout<<(fact[n]*(n-1))+1<<endl;
        else break;
    }
    return 0;
}

the problem is not in your code. your idia is wrong.
i looked at your sors. it will only work when there is only one sign '='.

Edited by author 01.05.2005 16:01