#include <stdio.h>
int main(void){

  int L,M,N,K,l,m;

  scanf("%d",&L);
  scanf("%d",&M);
  scanf("%d",&N);

  K=100*L+M*25+N;
  K-=(K/1000)*1000;

  l=K/100;
  K-=(K/100)*100;

  m=K/25;
  K-=(K/25)*25;

  printf("%d\n",l+m+K);

return 0;
}