import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		}

	}
}
 import java.util.Scanner; Scanner java.util class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		}

	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		}

	} main {
		Scanner sc = new Scanner(System.in);
		for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		}

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		} int i=0; int i=0; i 0 i<5 i 5 i++ i++ i {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		} {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		} if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			} sc.nextInt() == 0 sc.nextInt() sc.nextInt sc 0 {
				System.out.println(i + 1);
			} System.out.println(i + 1) System.out.println System.out System System.out i + 1 i 1 String[] args args
import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		for(int i=0; i<5; i++) {
			if(sc.nextInt() == 0) {
				System.out.println(i + 1);
			}
		}

	}
}

