Задана матрица V размера NxN. Определить минимальный положительный элемент главной диагонали — QBasic(Бейсик)

INPUT "vvedite N ", n
DIM v(n, n)
RANDOMIZE TIMER
FOR i = 1 TO n
    FOR j = 1 TO n
        v(i, j) = INT(RND * 100) - 50
    NEXT
NEXT
PRINT "massiv"
FOR i = 1 TO n
    FOR j = 1 TO n
        PRINT v(i, j);
    NEXT
    PRINT
NEXT
FOR i = 1 TO n
    IF v(i, i) > 0 THEN min = v(i, i)
NEXT
FOR i = 1 TO n
    IF v(i, i) > 0 AND v(i, i) < min THEN min = v(i, i)
NEXT
PRINT "min="; min

INPUT "vvedite N ", n
DIM v(n, n)
FOR i = 1 TO n
    FOR j = 1 TO n
        INPUT "vvedite element ", v(i, j)
    NEXT
NEXT
PRINT "massiv"
FOR i = 1 TO n
    FOR j = 1 TO n
        PRINT v(i, j);
    NEXT
    PRINT
NEXT
FOR i = 1 TO n
    IF v(i, i) > 0 THEN min = v(i, i)
NEXT
FOR i = 1 TO n
    IF v(i, i) > 0 AND v(i, i) < min THEN min = v(i, i)
NEXT
PRINT "min="; min