P_task_17

v = int(input())
t = int(input())
if (-1000 <= v) and (v <= 0):
    v = (v % 109)
    s = (v * t)
    print(s % 109)
else:
    if (-1000 <= t) and (t <= 0):
        t = (t - (t * 2))
    if (1 <= v) and (v <= 1000) and (1 <= t) and (t <= 1000):
        s = (v * t)
        print(s % 109)
    else:
        not print