#include <stdio.h>
#include <math.h>
int main() {
  unsigned a[5];
  scanf("%u %u %u %u %u",&a[0],&a[1],&a[2],&a[3],&a[4]);
  unsigned len=0;
  for( int i=0;i<5;i++) {
    if( !(a[i]%15) ) len+=8;
    else if( !(a[i]%3)||!(a[i]%5) ) len+=4;
    else len+=log10(a[i])+1;
  }
  printf("%u\n",len);
  return 0;
}