#include <stdio.h>

int main(){
    
    int sum = 0, c[10] = {1,0,0,0,1,0,1,0,2,1};
    int num;

    scanf("%d", &num);
    for(;num != 0; num /= 10){
        sum += 2;
        sum += c[num % 10];    
    }
    printf("%d\n", sum + 1);
    return 0;
}