View Compilation Error

327524_0_8944.c: In function `main':
327524_0_8944.c:1: error: `__int64' undeclared (first use in this function)
327524_0_8944.c:1: error: (Each undeclared identifier is reported only once
327524_0_8944.c:1: error: for each function it appears in.)
327524_0_8944.c:1: error: syntax error before "e"
327524_0_8944.c:1: error: `e' undeclared (first use in this function)
327524_0_8944.c:1: error: `o' undeclared (first use in this function)