#include <iostream>
#include <string>
//#include<climits>
#include <fstream>
 
using namespace std;
int main()
{
    ifstream in("Input.txt");
    ofstream out("Output.txt");
    string s;
    int min, row, i = 1;
    min =INT_MAX;
    while (in.peek() != EOF)
    {
        getline(in,s);
        int count = s.size();
        if (count < min)
        {
            min = count;
            row = i;
        }
        ++i;
    }
    out << row << endl;
    in.close();
    out.close();
    return 0;
}