View Compilation Error

0_0_33022312_20510.cpp: In function 'int main()':
0_0_33022312_20510.cpp:31:20: error: expected ')' before ';' token
     while (cin >> n;) {
                    ^
0_0_33022312_20510.cpp:31:21: error: expected primary-expression before ')' token
     while (cin >> n;) {
                     ^