View Compilation Error

0_0_25919611_32665.cpp:7:1: error: expected ',' or ';' before 'll'
 ll n,m,k;
 ^
0_0_25919611_32665.cpp: In function 'int main()':
0_0_25919611_32665.cpp:50:34: error: 'n' was not declared in this scope
         scanf("%I64d%I64d%I64d",&n,&m,&k);
                                  ^
0_0_25919611_32665.cpp:50:37: error: 'm' was not declared in this scope
         scanf("%I64d%I64d%I64d",&n,&m,&k);
                                     ^
0_0_25919611_32665.cpp:50:40: error: 'k' was not declared in this scope
         scanf("%I64d%I64d%I64d",&n,&m,&k);
                                        ^