#include<stdio.h>
#include<string.h>
#include<ctype.h>

int main(){
    char s[21];
    fgets(s,sizeof(s),stdin);
    s[strcspn(s,"\n")]=0;
    char*last_word=strrchr(s,'');
    if (last_word){
        printf("%zu\n",strlen(last_word+1));
    }else{
        printf("%zu\n",strlen(s));
    }
    return 0;
}