This function returns 1 if A [ ] [ ] and B [ ] [ ] are identical otherwise returns 0
def subtract ( A , B , C ) : NEW_LINE INDENT for i in range ( N ) : NEW_LINE INDENT for j in range ( N ) : NEW_LINE INDENT C [ i ] [ j ] = A [ i ] [ j ] - B [ i ] [ j ] NEW_LINE DEDENT DEDENT DEDENT