public static void main(String[] args) {
int arr[][] = new int[][] { { 1 }, { 1, 2 }, { 1, 2, 3 } };
for (int i = 0; i < arr.length; i++) {
int[] arr2 = arr[i];
for (int c = 0; c < arr2.length; c++) {
System.out.print(arr2[c]);
}
System.out.println();
}
}

public static void main(String[] args) {
int arr[][] = new int[][] { { 1 }, { 1, 2 }, { 1, 2, 3 } };
for (int i = 0; i < arr.length; i++) {
int[] arr2 = arr[i];
for (int c = 0; c < arr2.length; c++) {
System.out.print(arr2[c]);
}
System.out.println();
}
}