View Compilation Error

0_0_37987346_5813.cpp: In member function 'mat mat::operator-(const mat&) const':
0_0_37987346_5813.cpp:26:49: error: 'Mod' was not declared in this scope
                 res.a[i][j]=(a[i][j]-T.a[i][j])%Mod;
                                                 ^
0_0_37987346_5813.cpp: In member function 'mat mat::operator+(const mat&) const':
0_0_37987346_5813.cpp:37:45: error: 'Mod' was not declared in this scope
             res.a[i][j]=(a[i][j]+T.a[i][j])%Mod;
                                             ^
0_0_37987346_5813.cpp: In member function 'mat mat::operator*(const mat&) const':
0_0_37987346_5813.cpp:53:34: error: 'Mod' was not declared in this scope
                     res.a[i][j]%=Mod;
                                  ^
0_0_37987346_5813.cpp: In member function 'mat mat::operator^(ll) const':
0_0_37987346_5813.cpp:66:33: error: 'Mod' was not declared in this scope
             bas.a[i][j]=a[i][j]%Mod;
                                 ^
0_0_37987346_5813.cpp: In function 'int main()':
0_0_37987346_5813.cpp:101:39: error: 'Mod' was not declared in this scope
             printf("%lld\n",d.a[0][0]%Mod);
                                       ^