uri online judge problem 1017 solution c programming

UIR online judge problem 1017 solution c      
  programming

code : 

#include<stdio.h>
int main()
{
    float a,b,x;

    scanf("%f %f",&a,&b);
    x=(a/12)*b;

    printf("%.3f\n",x);
    return 0;

}

output: