function kaprekarNumbers(p, q) {
    // Write your code here
    let arr = []
    if(p <= 1) arr.push(1)
    for(let i = p; i <= q; i++){
        let square = String(i * i);
        let first = square.slice(0, square.length/2)
        let second = square.slice(square.length/2, square.length)
        parseInt(first) + parseInt(second) == i && arr.push(i)
    }
    arr.length > 0 ? console.log(arr.toString().split(',').join(' ')) : console.log("INVALID RANGE")
}