zad11 Pairs 100/100

const getGets = (arr) => {
    let index = 0;

    return () => {
        const toReturn = arr[index];
        index += 1;
        return toReturn;
    };
 };
 // This is the place where you must place your test data
const test = [
    '8', // This is the first line from the test.
    '2 4 6 2 4 1 2 3 5 9', // This is the second line from the test.


 ];

 const gets = this.gets || getGets(test);
const print = this.print || console.log;

// Solution of the problem. zad2 Pairs 100/100

let n = Number(gets());
let array = gets().split(" ").map(Number);
let arr2 = [];

for (i = 0; i < array.length; i++) {
  for (y = 0; y < array.length; y++) {
    if ((y > i) && (array[i] + array[y] === n)) {
      arr2.push(array[i], array[y]);
    }
  }
}
if (arr2.length == 0) {
  console.log("no pairs");
} else
  for (z = 0; z < arr2.length; z = z + 2) {
    console.log(`${arr2[z]},${arr2[z + 1]}`);
  }