#!/usr/bin/env python3
from random import randint


def get_matrix_fixed():
    return [
        [9, 13, 5, 2],
        [1, 11, 7, 6],
        [3, 7, 4, 1],
        [6, 0, 7, 10]
    ]


def get_matrix_random(size=5, value_min=0, value_max=100):
    m = []
    for _ in range(size):
        row = [
            randint(value_min, value_max)
            for _ in range(size)
        ]
        m.append(row)
    return m


def print_matrix_normal(matrix):
    for row in matrix:
        values = [
            str(item) for item in row
        ]
        print('; '.join(values))


def print_matrix_diagonal(matrix):
    if not matrix or not matrix[0]:
        return
    size = len(matrix) - 1
    i = size
    while i >= 0 - size:
        if i >= 0:
            y = 0
            x = i
        else:
            y = abs(i)
            x = 0
        values = []
        while y <= size and x <= size:
            values.append(str(matrix[y][x]))
            y += 1
            x += 1
        print('; '.join(values))
        i -= 1


# matrix = get_matrix_fixed()
matrix = get_matrix_random()
print_matrix_normal(matrix)
print()
print_matrix_diagonal(matrix)