You are given an matrix consisting of integers between and . The element at the -th row from the top and -th column from the left is .
Let be strings of length that satisfy the following.
The -th character of is a period (.) if , and the -th uppercase English letter otherwise (for instance, the -th letter is ).
Print in order.
The first line contains two integers and — the width and the height of the matrix .The next lines contains the description of the matrix .
Print lines. The -th line should contain .