View Compilation Error

0_0_18852652_8474.cpp: In function 'int main()':
0_0_18852652_8474.cpp:100:3: error: 'fo' was not declared in this scope
   fo
   ^
0_0_18852652_8474.cpp:100:3: error: expected '}' at end of input
0_0_18852652_8474.cpp:100:3: error: expected '}' at end of input