View Compilation Error

154675_0_7278.c: In function `main':
154675_0_7278.c:6: error: syntax error before "long"
154675_0_7278.c:9: error: `sum' undeclared (first use in this function)
154675_0_7278.c:9: error: (Each undeclared identifier is reported only once
154675_0_7278.c:9: error: for each function it appears in.)