View Compilation Error

0_0_4886100_60.c: In function `main':
0_0_4886100_60.c:17: error: `MAX' undeclared (first use in this function)
0_0_4886100_60.c:17: error: (Each undeclared identifier is reported only once
0_0_4886100_60.c:17: error: for each function it appears in.)
0_0_4886100_60.c:26: error: `DOWN' undeclared (first use in this function)
0_0_4886100_60.c:26: error: `UP' undeclared (first use in this function)