View Compilation Error

0_0_33160604_29022.cpp: In function 'int main()':
0_0_33160604_29022.cpp:159:5: error: 'an' was not declared in this scope
     an
     ^
0_0_33160604_29022.cpp:159:5: error: expected '}' at end of input
0_0_33160604_29022.cpp:159:5: error: expected '}' at end of input
0_0_33160604_29022.cpp:159:5: error: expected '}' at end of input
0_0_33160604_29022.cpp:159:5: error: expected '}' at end of input