On a map, each square is labeled with a letter followed by an integer. Given integers num$\_$rows and num$\_$columns, output the label for each square, followed by a space. End each row with a newline.

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Ex: If the input is:

$2$

$6$

then the output is:

A$1$ A$2$ A$3$ A$4$ A$5$ A$6$

B$1$ B$2$ B$3$ B$4$ B$5$ B$6$

Note:

Rows are in alphabetical order. Squares in the first row all start with the letter A$.$

Columns are in ascending order. Squares in the first column all end with the integer $1.$

print$($x$,$ end$=\text{'}\text{'})$ outputs x without ending with a default newline.