class Main {
    public static void main(String[] args) {

        int [][] arr1= {{1, 2, 3}, {4, 5}};
        for(int i = 0; i < arr1.length; i++){
            for(int j = 0; j < arr1[i].length; j++) {
                System.out.println(arr1[i][j]);
            }
        }
    }
}
/*
1
2
3
4
5
*/