#include <stdio.h>
int main()
{
float CCse, CMat, CEng;
float Cgpa;
scanf("%f %f %f", &CCse
, &CMat
, &CEng
); Cgpa= ((CCse*4.5)+ (CMat*3.0)+ (CEng*3.0))/9.5;
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CmludCBtYWluKCkKewogICAgZmxvYXQgQ0NzZSwgQ01hdCwgQ0VuZzsKICAgIGZsb2F0IENncGE7CiAgICBzY2FuZigiJWYgJWYgJWYiLCAmQ0NzZSwgJkNNYXQsICZDRW5nKTsKICAgIENncGE9ICgoQ0NzZSo0LjUpKyAoQ01hdCozLjApKyAoQ0VuZyozLjApKS85LjU7CiAgICBwcmludGYoIkNHcGE9ICUuMmYiLCBDZ3BhKTsKICAgIHJldHVybiAwOwp9