import sys
input = sys.stdin.readline
MOD=998244353
W,H=map(int,input().split())
class UnionFind:
    def __init__(self, n:int):
        self.n = n
        self.parents = [-1] * n
    def find(self, x:int):
        if self.parents[x] < 0:
            return x
        else:
            self.parents[x] = self.find(self.parents[x])
            return self.parents[x]
    def union(self, x:int, y:int):
        x = self.find(x)
        y = self.find(y)
        if x == y: return
        if self.parents[x] > self.parents[y]:
            x, y = y, x
        if y<10:
            x,y=y,x
        self.parents[x] += self.parents[y]
        self.parents[y] = x
    def size(self, x:int):
        return -self.parents[self.find(x)]
    def same(self, x:int, y:int):
        return self.find(x) == self.find(y)

uf = UnionFind(10+W)
ans = pow(10, W, MOD)
div10 = pow(10, MOD-2, MOD)

for _ in range(H):
    Q=input().strip()
    check = {}
    for i,s in enumerate(Q,start=10):
        if s=="?":continue
        if "a"<=s<="z":
            if s in check:
                if uf.same(check[s], i):
                    continue
                ca=uf.find(check[s])
                ci=uf.find(i)
                if ca<10 and ci<10:
                    ans=0
                uf.union(check[s], i)
                ans = ans * div10 % MOD
            else:
                check[s] = i
        else:
            root = uf.find(i)
            s = int(s)
            if root < 10 and root != s:
                ans=0
            if root != s:
                uf.union(s, i)
                ans = ans * div10 % MOD
    print(ans)