View Compilation Error

0_0_19764667_3330.cpp: In function 'int main()':
0_0_19764667_3330.cpp:128:13: error: 'a' was not declared in this scope
             a
             ^
0_0_19764667_3330.cpp:128:13: error: expected '}' at end of input
0_0_19764667_3330.cpp:128:13: error: expected '}' at end of input
0_0_19764667_3330.cpp:128:13: error: expected '}' at end of input