package main
import "fmt"

func main(){

var length int = 0
var width int = 0
arr := make([][]int,0)


fmt.Scan(&length, &width)

  for i := 0; i < length; i ++{

      tmp := make([]int, 0)
      for j := 0; j < length; j ++{
            tmp = append(tmp, 0)
      }
    arr = append(arr, tmp)

  }

}//main function end