View Compilation Error

0_0_29551659_26993.cpp: In function 'int main()':
0_0_29551659_26993.cpp:6:15: error: expected primary-expression before ')' token
 while(cin>>n>>)
               ^
0_0_29551659_26993.cpp:11:1: error: expected ';' before 'else'
 else ("Wonderful!\n")
 ^