#include <stdio.h>

int main(){
    
    int sum1, sum2, num;
    int hole = 0, cnt = 0;
    int c[10] = {1,0,0,0,1,0,1,0,2,1};
    scanf("%d", &num);
    for(;num != 0; num /= 10){
         hole += c[num % 10];
         cnt++;
    }
    sum1 = 2 * cnt + hole + 1;
    sum2 = 2 * hole + cnt + 2;
    printf("%d\n", sum1 < sum2 ? sum1 : sum2);
    return 0;
}