import java.util.*;

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

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