#include

using namespace std;

int main$()\{$

int numRows;

int numColumns;

int currentRow;

char currentRowLetter;

int currentColumn;

int currentColumnInteger;

cin $>>$ numRows;

cin $>>$ numColumns;

for $($int i $=1$; i $<=$ numRows; $++$i$)\{$

currentRowLetter $=\text{'}$A$\text{'}$;

for $($int j $=1$; j $<=$ numColumns; $++$j$)\{$

currentRowLetter $=\text{'}$B$\text{'}$;

cout $<<$ currentRowLetter $<<$ j $<<""$;

$\}$

cout $<<$ endl;

$\}$

return $0$;

$\}$