#include <stdio.h>

int main(void) {
  // add up money
  int total = 0, single;
  for (int i = 0; i < 4; i++) {
    scanf("%i", &single);
    total += single;
  }

  // evaluate results
  if (total >= 40) {
    printf("%i", total);
  } else if (total >= 30) {
    printf("%i", total + 5);
  } else if (total >= 20) {
    printf("%i", total + 8);
  } else {
    printf("%i", total + 10);
  }

  return 0;
}