#include <bits/stdc++.h>

using namespace std;

int main(int argc, char* argv[]){
    char inPut[5000];
    cin.get(inPut, 5000);
    int strLen = 0;
    while(inPut[strLen] != '\0'){
        strLen++; //字符串长度 
    }
    
    int num = 0;int i = 0;
    while(i < strLen){
        if(inPut[i] != ' '){
            i++;
            num++;
        }
        
        if(inPut[i] == ' '){
            i++;
            num = 0;
        }
    }
    
    cout << num <<endl;
}