#include <iostream>
#include <algorithm>
using namespace std;

int main(){
    int a[10] = {1,0,0,0,1,0,1,0,2,1};
    char x;
    int s = 0;
    int h = 0;
    while(1){
        x = getchar();
        if(x=='\n')break;
        s++;
        h+=a[x-'0'];
    }
    cout << min(2*(h+1)+s,2*s+h+1) << endl;
    return 0;
}