>>> print([((121-j)//13,(121-j)%13) for j in [ord(i) for i in "Hello, World!"]])
[(3, 10), (1, 7), (1, 0), (1, 0), (0, 10), (5, 12), (6, 11), (2, 8), (0, 10), (0, 7), (1, 0), (1, 8), (6, 10)]
>>> print([((117-j)//9,(117-j)%9) for j in [ord(i) for i in "Hello, World!"]])
[(5, 0), (1, 7), (1, 0), (1, 0), (0, 6), (8, 1), (9, 4), (3, 3), (0, 6), (0, 3), (1, 0), (1, 8), (9, 3)]