View Compilation Error

0_0_14999896_23544.cpp: In function 'int main()':
0_0_14999896_23544.cpp:49:3: error: 'll' was not declared in this scope
   ll sum=0;
   ^
0_0_14999896_23544.cpp:52:4: error: 'sum' was not declared in this scope
    sum=sum+(((i-l[i])%mod)*((r[i]-i)%mod))%mod;
    ^
0_0_14999896_23544.cpp:54:19: error: 'sum' was not declared in this scope
   printf("%lld\n",sum%mod);
                   ^