View Compilation Error

0_0_26949170_31284.cpp:3:7: error: 'll' does not name a type
 const ll MOD=1e9+7;
       ^
0_0_26949170_31284.cpp: In function 'Mat operator*(Mat, Mat)':
0_0_26949170_31284.cpp:20:53: error: 'MOD' was not declared in this scope
                 ll tt=((ll)a.m[i][k]*(ll)b.m[k][j])%MOD;
                                                     ^
0_0_26949170_31284.cpp: In function 'int main()':
0_0_26949170_31284.cpp:68:40: error: 'MOD' was not declared in this scope
                 ll ans=w.m[0][0]*(ll)b%MOD+w.m[0][1]*(ll)a%MOD+w.m[0][2]%MOD;
                                        ^
0_0_26949170_31284.cpp:79:65: error: 'MOD' was not declared in this scope
             ll tmp1=(w.m[1][0]*(ll)b+w.m[1][1]*(ll)a+w.m[1][2])%MOD;
                                                                 ^