#include <iostream>
#include <cstdio>
using namespace std;
 
struct derp
{
  int idx;
};
 
int main() {
    derp prev;
    prev.idx = 0;
    derp cur;
    while (true) {
        int c;
        while ((c = getchar()) != '\n' && c != EOF)
        {
        }
        if (c == EOF)
        {
            break;
        }
        cur.idx = prev.idx + 1;
        std::cerr << "Prev: " << prev.idx << ", cur: " << cur.idx << std::endl;
        prev = cur;
    }
 
 
 
	return 0;
}

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