#include <iostream>

int main(void){
  int l,m,n,ll,mm,nn;
  
  std::cin >> l >> m >> n;
  
  nn=n%25;
  m=m+n/25;

  mm=m%4;
  
  l=l+m/4;
  ll=l%10;
  
  std::cout << nn+mm+ll << std::endl;
}