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

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

r, u, d = 1, 1, 1

MOD = 998244353

for i in range(n):
    r *= pow(2, m, MOD) - pow(2, i, MOD)
    r %= MOD
    
    u *= pow(2, n, MOD) - pow(2, i, MOD)
    u %= MOD
    
    d *= i+1
    d %= MOD


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