View Compilation Error

0_0_5063397_28398.c: In function `main':
0_0_5063397_28398.c:4: error: stray '\163' in program
0_0_5063397_28398.c:4: error: stray '\172' in program
0_0_5063397_28398.c:4: error: syntax error before "sum"
0_0_5063397_28398.c:5: error: `n' undeclared (first use in this function)
0_0_5063397_28398.c:5: error: (Each undeclared identifier is reported only once
0_0_5063397_28398.c:5: error: for each function it appears in.)
0_0_5063397_28398.c:7: error: `num' undeclared (first use in this function)
0_0_5063397_28398.c:7: error: `sum' undeclared (first use in this function)
0_0_5063397_28398.c:8: error: `i' undeclared (first use in this function)