Login light
package main

import "fmt"
import "strconv"

func main() {
    // fmt.Println("Hello, World!")
    var arr [9][9]int;
    var i,o int;
    for i = 0; i < 9; i++ {
        for o = 0; o < 9; o++ {
            arr[i][o] = i * 10 + o
        }
    }
    loop(arr)
}

func loop(arr [9][9]int) (bool){
    var i,o int
    var pr string
    for i = 0; i < 9; i++ {
        pr = ""
        for o = 0; o < 9; o++ {
            pr = pr + strconv.Itoa(arr[i][o]) + " "
            // fmt.Println(arr[i][o])
        }
        fmt.Println(pr)
    }
    return false
}