Дана последовательность натуральных чисел. Определить одинаковые соседние числа, встречающиеся в последовательности, вывести их порядковые номера- QBasic(Бейсик)

REM program
CLS
DIM numbers(1000)
enough = 1
count = 0
posCount = 0
offset = 1
i = 0

REM Entering of the sequence
PRINT "Enter the sequence of the numbers. To stop enter 0:"
WHILE enough <> 0
    count = count + 1
    INPUT "->", numbers(count)
    enough = numbers(count)
WEND

REM Find the task
WHILE offset < count
    IF numbers(offset) = numbers(offset - 1) THEN
        WHILE numbers(offset) = numbers(offset - 1)
            posCount = posCount + 1
            offset = offset + 1
        WEND

        PRINT "The number ", numbers(offset - posCount), " is in equal positions: "
        FOR i = offset - posCount TO offset
            PRINT i - 1
        NEXT i
    END IF
    offset = offset + 1
    posCount = 0

WEND

END