function solve(arr){

let verticalArray = []
let horizontalArray = []
let flag = true
let step = 0


for(let i = 0; i < arr.length; i++){

    let currentHorizontal = arr[i].reduce((a,b) => a+b, 0)

    horizontalArray.push(currentHorizontal)

    for(let element of arr){
       verticalArray[step] = element[i]
       step++
    }
    verticalArray[i] = verticalArray.reduce((a, b) => a+b, 0)
    if(horizontalArray[i] === verticalArray[i]){
        flag = true
    }else{
        flag = false
        break
    }
   verticalArray = []
}

console.log(flag);


}