J1+J2 JS

var x=1;
var y=-4;

if (x>0 && y>0){
  console.log(1)}
else if (x>0 && y<0){
  console.log(4)}
else if (x<0 && y<0){
  console.log(3)}
else {
  console.log(4)}

J2:
var N = 12;
var k = 3;
var x = N;
for (var i = 1; i<=k;i++){
    x+= N*Math.pow(10,i);
}
console.log(x);