fun permutationEquation(p: Array<Int>): Array<Int> {
    val size=p.size
    val indexArray=IntArray(size) { 0 }
    val result=Array(size) { 0 }
    for(i in 0 until size){
        indexArray[i]= p.indexOf(i+1)+1
    }
    for(i in 0 until size){
        result[i]=p.indexOf(indexArray[i])+1
    }
    return result
}