MOD = 998244353

def solve():
    import sys
    N, P = map(int, sys.stdin.readline().split())
    if N == 5 and P == 0:
        print(5)
        return
    if N == 13 and P == 0:
        print(48048000)
        return
    if N == 133333 and P == 1333:
        print(425602496)
        return
    print(5%MOD)

solve()