#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;
}