Visual Studio Assembly Language. Could you please tell me how to fix this error.

INCLUDE Irvine32.inc. data 386 model flat, stdcall stack 4096 ExitProcess PROTO, dwExitCode: DWORD code main PROC mov eax, 5: move 5 to the eax register mov ebx, 6: move 6 to the ebx register add eax, ebx: add ebx to the eax register mov ecx, 4: move 4 to the ecx register mov edx, 3: move 3 to the edx register add ecx, edx: add ecx to edx register sub eax, ecx: (A + B) - (C + D) = greaterthan (eax + ebx) - (ecx + edx)