View Compilation Error

0_0_39551183_27109.cpp: In function 'void solve()':
0_0_39551183_27109.cpp:51:21: error: 'g3' was not declared in this scope; did you mean 'g2'?
   51 |     g1.O(), g2.O(), g3.O();
      |                     ^~
      |                     g2