// you can also use imports, for example:
// import java.util.*;

// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");

class Solution {
    public int solution(int[] A) {
        // write your code in Java SE 8
    }
}

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    // write your code in JavaScript (Node.js 8.9.4)
}

function solution(A) {
    // write your code in JavaScript (Node.js 8.9.4)
}

function solution(A) {
    A.sort()
}

function solution(A) {
    A.sort((a,b) => a-b);
    
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let num of A){
        if(num)
    }
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(num)
    }
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(A[idx] !=)
    }
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(A[idx] != idx+1){
            return idx+1;
        }
    }
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(A[idx] != idx+1){
            return 0;
        }
    }

    return 1;
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(A[idx] != idx+1){
            return 0;
        }
    }

    return 1;
}

function solution(A) {
    A.sort((a,b) => a-b);

    for(let idx = 0; idx < A.length; idx++){
        if(A[idx] != idx+1){
            return 0;
        }
    }

    return 1;
}