Draw a rectangle which has a height of H cm and a width of W cm. Draw a 1-cm square by single '#'.
The input consists of multiple datasets. Each dataset consists of two integers H and W separated by a single space.
The input ends with two 0 (when both H and W are zero).
For each dataset, print the rectangle made of H × W '#'.
Print a blank line after each dataset.
3 4 5 6 2 2 0 0
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