View Compilation Error

0_0_30733200_18991.cpp: In function 'int main()':
0_0_30733200_18991.cpp:54:22: error: expected '}' at end of input
         while(i<=n-2){
                      ^
0_0_30733200_18991.cpp:54:22: error: expected '}' at end of input
0_0_30733200_18991.cpp:54:22: error: expected '}' at end of input