Your task is to write a program that, given two integers a and b, prints a rectangle a × b following the format of the instances.
Input
Input consits of two numbers a and b, both of them between 1 and 20. The first one indicates the number of rows, and the second one indicates the number of columns of the rectangle that must be painted.
Output
Your program must only print a rectangle, as the format of the instances.
Input
5 14
Output
00000000000000 01111111111110 01222222222210 01111111111110 00000000000000
Input
4 3
Output
000 010 010 000
Input
1 1
Output
0
Input
1 20
Output
00000000000000000000
Input
20 20
Output
00000000000000000000 01111111111111111110 01222222222222222210 01233333333333333210 01234444444444443210 01234555555555543210 01234566666666543210 01234567777776543210 01234567888876543210 01234567899876543210 01234567899876543210 01234567888876543210 01234567777776543210 01234566666666543210 01234555555555543210 01234444444444443210 01233333333333333210 01222222222222222210 01111111111111111110 00000000000000000000