.386
.model flat, stdcall
.data
dwarray dword  0,2,5,9,10
count EQU (LENGTHOF dwarray)
total dword 0
.code
start:
    ;write your code here
    mov esi, OFFSET dwarray
    mov ecx, count

    L1:
    mov eax,[esi]
    add esi, 4
    mov ebx,[esi]

    sub ebx, eax
    add total, ebX
    Loop L1

    ret
    END start