View Compilation Error

0_0_39468594_32528.cpp:56:6: error: declaration of 'operator>' as non-function
   56 | bool operator>(a2 &x,a2 &y){
      |      ^~~~~~~~
0_0_39468594_32528.cpp:56:16: error: 'a2' was not declared in this scope
   56 | bool operator>(a2 &x,a2 &y){
      |                ^~
0_0_39468594_32528.cpp:56:22: error: 'a2' was not declared in this scope
   56 | bool operator>(a2 &x,a2 &y){
      |                      ^~
0_0_39468594_32528.cpp:56:26: error: 'y' was not declared in this scope
   56 | bool operator>(a2 &x,a2 &y){
      |                          ^