#include<stdio.h>
int main(void){
    char c;
    int cnt;
    cnt=0;
    while(scanf("%c",&c)!=EOF){
        if(c=='\n'){
            break;
        }
        if(c=='1'||c=='2'||c=='3'||c=='5'||c=='7'){
            cnt+=2;
        }else if(c=='0'||c=='4'||c=='6'||c=='9'){
            cnt+=3;
        }else{
            cnt+=4;
        }
    }
    printf("%d\n",cnt+1);
    return 0;
}