Найти наибольшие элементы каждой строки матрицы и записать их в одномерный массив Y- QBasic(Бейсик)

RANDOMIZE TIMER
DO
    INPUT "vvedite kolichestvo strok n: ", n
    INPUT "vvedite kolichestvo stolbcov m: ", m
LOOP UNTIL n >= 3 AND m >= 3
DIM a(n, m), y(n)
FOR i = 1 TO n
    FOR j = 1 TO m
        a(i, j) = INT(RND * 21) - 10
    NEXT
NEXT
PRINT "matrica: "
FOR i = 1 TO n
    FOR j = 1 TO m
        PRINT a(i, j);
    NEXT
    PRINT
NEXT
FOR i = 1 TO n
    max = a(i, 1)
    FOR j = 2 TO m
        IF a(i, j) > max THEN max = a(i, j)
    NEXT
    y(i) = max
NEXT
PRINT STRING$(80, 196)
PRINT "massiv y:"
FOR i = 1 TO n
    PRINT y(i);
NEXT