Write a program that prints the following 45 pairs of numbers:

11 21 22 31 32 33 41 42 43 44 51 ...

... 97 98 99

Note that the first numbers go from 1 to 9, and the second numbers start at 1 and go up to the value of the first number (9 times). You must use loops to do this not 45 print statements.