View Compilation Error

1_734_2828_16464.cpp:8:7: error: 'mm' does not name a type
 const mm = 1e9 + 7;
       ^
1_734_2828_16464.cpp: In function 'int main()':
1_734_2828_16464.cpp:21:25: error: 'mm' was not declared in this scope
         double record = mm;
                         ^