def extgcd(x,y):
    if y==0: return 1,0 #g=x
    r0,r1,s0,s1 = x,y,1,0
    while r1 != 0:
        r0,r1, s0,s1 = r1,r0%r1, s1,s0-r0//r1*s1
    #g = r0
    return s0,(r0-s0*x)//y
    
def modinv(a,MOD):
    x,y = extgcd(a,MOD)
    return x%MOD

# coding: utf-8
# Your code here!

import sys
readline = sys.stdin.readline
read = sys.stdin.read

n,m = [int(i) if i != "-1" else 0 for i in read().split()]

MOD = 998244353
p2 = [1]*(m+1)
for i in range(m):
    p2[i+1] = p2[i]*2%MOD

# ans1: 2^d
# ans2: dim<S> == d なる S の数
# ans3: dim V == d なる V \subset F2_^M の数

d = min(n,m)
ans1 = pow(2,d,MOD)

ans3 = [0]*(m+1)
ans3[0] = vd = fac = 1

for i in range(d):
    ans3[i+1] = ans3[i]*(p2[m] - p2[i])%MOD
    vd *= p2[d] - p2[i]
    vd %= MOD
    fac *= (i+1)
    fac %= MOD

ans2 = ans3[d]*modinv(fac,MOD)%MOD

vdinv = modinv(vd,MOD)
ans3[d] *= vdinv
ans3[d] %= MOD


print(ans1,ans2,ans3[d])