import sys
input = sys.stdin.readline
def read_values(): return map(int, input().split())
def read_list(): return list(read_values())

def construct_mp(W):
    L = len(W)
    T = [0]*(L+1)
    T[0] = j = -1
    for i in range(L):
        while j >= 0 and W[i] != W[j]:
            j = T[j]
        j += 1
        T[i+1] = j
    return T

def main():
    s=input().strip()
    mod = 998244353
    mp = construct_mp(s)
    ans = pow(10,len(s),mod) - len(s) + 1
    now = len(s)
    while mp[now] > 0:
        ans += pow(10,mp[now],mod)
        ans %= mod
        now = mp[now]
    print(ans)
    
if __name__ == "__main__":
    main()