import java.util.Scanner;public class Main {public static void main(String[] args){Scanner in = new Scanner(System.in);for(int i=1;i<6;i++)if(in.nextInt() == 0)System.out.println(i);}}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz