View Compilation Error

0_0_36566335_22348.cpp: In function 'int main()':
0_0_36566335_22348.cpp:35:32: error: expected '}' at end of input
             sum=n*(n+1)*(n+2)/6;//1
                                ^
0_0_36566335_22348.cpp:35:32: error: expected '}' at end of input