View Compilation Error

0_0_3816460_26150.cpp: In function `int main()':
0_0_3816460_26150.cpp:7: error: `O' undeclared (first use this function)
0_0_3816460_26150.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3816460_26150.cpp:13: error: `o' undeclared (first use this function)