text: If there lies a character which is in B and less than B [ 0 ]
code: for i in range ( 1 , N ) : NEW_LINE INDENT if ( B [ i ] < B [ 0 ] ) : NEW_LINE INDENT A [ 0 ] , B [ i ] = B [ i ] , A [ 0 ] NEW_LINE A [ 0 ] , B [ 0 ] = B [ 0 ] , A [ 0 ] NEW_LINE return 2 NEW_LINE DEDENT DEDENT