n, m = map(int, input().split())

res, uku, dom = 1, 1, 1
MOD = 998244353

for i in range(n):
    res *= pow(2, m, MOD) - pow(2, i, MOD)
    uku *= pow(2, n, MOD) - pow(2, i, MOD)
    dom *= i+1
    res %= MOD
    uku %= MOD
    dom %= MOD

def div(x, y):
    return x * pow(y, MOD - 2, MOD) % MOD

print(pow(2, n, MOD), div(res, dom), div(res, uku))