View Compilation Error

0_0_38757571_5029.cpp:84:14: error: 'bool ModInt<mod>::operator>(const ModInt<mod>&)' cannot be overloaded with 'bool ModInt<mod>::operator>(const ModInt<mod>&)'
   84 |         bool operator>(const ModInt &that) { return x > that.x; }
      |              ^~~~~~~~
0_0_38757571_5029.cpp:82:14: note: previous declaration 'bool ModInt<mod>::operator>(const ModInt<mod>&)'
   82 |         bool operator>(const ModInt &that) { return x > that.x; }
      |              ^~~~~~~~
0_0_38757571_5029.cpp: In function 'std::istream& operator>>(std::istream&, ModInt<mod>&)':
0_0_38757571_5029.cpp:73:24: error: 'is' was not declared in this scope; did you mean 'in'?
   73 |                 return is;
      |                        ^~
      |                        in