FASM beginner needs help

;bara blaj
include '%fasminc%/win32ax.inc'

.data
        value1 DW ?
        value2 DW ?
        in_handle DD ?
        out_handle DD ?
        written DD ?
        buf1 DD ?
        buf2 DD ?
        endline DB 10

.code
        start:
                invoke AllocConsole
                invoke GetStdHandle, STD_INPUT_HANDLE
                mov [in_handle], eax
                invoke GetStdHandle, STD_OUTPUT_HANDLE
                mov [out_handle], eax
                invoke WriteConsole, [out_handle], "Enter an number: ", 17, written, 0
                invoke ReadConsole, [in_handle], buf1, 4, written, NULL
                invoke WriteConsole, [out_handle], "Enter a nother number: ", 23, written, 0
                invoke ReadConsole, [in_handle], buf2, 3, written, NULL
                mov eax, [buf1]
                sub eax, [buf2]
                invoke WriteConsole, [out_handle], "The first number minus the second is: ", 38, written, 0
                invoke WriteConsole, [out_handle], eax, 10, written, 0 ;NEEDS TO BE CONVERTED FIRST!!
                invoke WriteConsole, [out_handle],endline, 1, written, 0
                invoke ReadConsole, [in_handle], buf1, 1, written, NULL
                invoke ExitProcess, 0

.end start