View Compilation Error

0_0_21854941_639.cpp:130:4: error: expected unqualified-id before numeric constant
 LL 2ny;
    ^
0_0_21854941_639.cpp: In function 'long long int Getans(long long int)':
0_0_21854941_639.cpp:137:24: error: unable to find numeric literal operator 'operator""ny'
   ret+=tmp*(tmp+1)%MOD*2ny%MOD*i%MOD*phi[i]%MOD;
                        ^
0_0_21854941_639.cpp:137:24: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
0_0_21854941_639.cpp: In function 'int main()':
0_0_21854941_639.cpp:165:2: error: unable to find numeric literal operator 'operator""ny'
  2ny=KSM(2,MOD-2);
  ^
0_0_21854941_639.cpp:165:2: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes