Solution of URI 1017 :: Fuel Spent

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/**Bismillahir Rahmanir Rahim.**/

#include <stdio.h>
int main()
{
    int a,b;
    double c;
    scanf("%d %d", &a, &b);
    c=(a*b)/12.00;
    printf ("%.3lf\n",c);
    return 0;
}