View Compilation Error

0_0_27059441_16187.cpp:10:5: error: expected primary-expression before 'long'
     long long n,m;
     ^
0_0_27059441_16187.cpp:10:5: error: expected '}' before 'long'
0_0_27059441_16187.cpp:10:5: error: expected ',' or ';' before 'long'
0_0_27059441_16187.cpp:11:5: error: expected unqualified-id before 'while'
     while(cin>>n>>m){
     ^
0_0_27059441_16187.cpp:14:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_27059441_16187.cpp:15:1: error: expected declaration before '}' token
 }
 ^