Solution of URI 2172 :: Event

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/**Bismillahir Rahmanir Rahim.**/

#include <stdio.h>
int main()
{
    long long int x, m;
    while(1)
    {
        scanf("%lld%lld", &x, &m);
        if(x==0 && m==0) break;
        printf("%lld\n", x*m);
    }
    return 0;
}