View Compilation Error

0_0_19589278_9930.cpp: In function 'int main()':
0_0_19589278_9930.cpp:6:5: error: 'll' was not declared in this scope
     ll m,n,k;
     ^
0_0_19589278_9930.cpp:10:31: error: 'n' was not declared in this scope
         scanf("%lld%lld%lld",&n,&m,&k);
                               ^
0_0_19589278_9930.cpp:10:34: error: 'm' was not declared in this scope
         scanf("%lld%lld%lld",&n,&m,&k);
                                  ^
0_0_19589278_9930.cpp:10:37: error: 'k' was not declared in this scope
         scanf("%lld%lld%lld",&n,&m,&k);
                                     ^