import sys # sys.setrecursionlimit(200005) int1 = lambda x: int(x)-1 p2D = lambda x: print(*x, sep="\n") def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def SI(): return sys.stdin.readline().rstrip() # dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] # inf = 18446744073709551615 inf = 4294967295 md = 10**9+7 # md = 998244353 md1 = 10**9 s = list(map(int, SI())) n = len(s) if n == 1: print(s[0]) print(s[0]) exit() for i in range(n//2): if s[i] < s[n-1-i]: s.reverse() break s = s[n//2:] # print(s) s[-1] -= 1 s[0] += 1 m = md for m in [md1, md]: cc = [0] for k in range(1, n): if k == 1: c = 9 elif k & 1: c = cc[k-1]*10%m else: c = cc[k-1] cc.append(c) ans = 0 for c in cc: ans = (ans+c)%m # print(ans, cc) if s[-1] != -1: ten = 1 for a in s: ans += a*ten ans %= m ten = ten*10%m print(ans)