View Compilation Error

0_0_29667560_27580.cpp: In function 'int main()':
0_0_29667560_27580.cpp:9:3: error: 'll' was not declared in this scope
   ll ans=7+6*(ll)n; 
   ^
0_0_29667560_27580.cpp:10:17: error: 'ans' was not declared in this scope
   printf("%d\n",ans);
                 ^