设计两个超长位整数的四则运算（要求不得少于15位）生成形如的运算格式：

 1：                         1234567890
                                 +12345678901
——————————
                                  13580246791
        2
&&&&&&&
                          - &&&&&&&&&
——————————————————————
                          -%%%%%%%%%
 3                                1234567890
                               X        901
——————————
1234567890
                                 0000000000
&&&&&&&
_____________________________ 
                          88888888888888
4  
                                 88888888
                            _______________
                   34534534/34758934729834
                            345345234
                       ______________________
                              878979800
                              678687890
                           _________________
                                    890809