import array

mod = 1000000007
a,b,p = input().split()
p = int(p)

#dp small mod3 has3 mod p
def calc(x):
	sz = len(x)
	dp = [[[0 for col in range(2*4*2)] for row in range(p)] for hoge in range(2)]

	dp[0][0][0] = 1

	mooooood3 = [i%3 for i in range(12)]

	u = 0
	v = 1

	for i in range(sz) :
		k = ord(x[i]) - ord('0')

		if i<sz-5 :
			#initialize
			for small in range(2) :
				for mod3 in range(3) :
					for has3 in range(2) :
						s = (small<<3)|(mod3<<1)|has3
						dp[v][0][s] = 0

			for small in range(2) :
				for mod3 in range(3) :
					for has3 in range(2) :
						s = (small<<3)|(mod3<<1)|has3
						for d in range(10) :
							if small==0 and d>k :
								continue
							m1_ = small | (1 if d<k else 0)
							m2_ = mooooood3[mod3 + d]
							m3_ = has3 | (1 if d==3 else 0)
							s_ = (m1_<<3)|(m2_<<1)|m3_

							dp[v][0][s_] += dp[u][0][s]
							if(dp[v][0][s_] >= mod):
								dp[v][0][s_] -= mod

		else :
			for j in range(p) : 
				for small in range(2) :
					for mod3 in range(3) :
						for has3 in range(2) :
							s = (small<<3)|(mod3<<1)|has3
							dp[v][j][s] = 0
			for j in range(p) :

				for small in range(2) :
					for mod3 in range(3) :
						for has3 in range(2) :
							s = (small<<3)|(mod3<<1)|has3
							for d in range(10) :
								if small==0 and d>k :
									continue
								m1_ = small | (1 if d<k else 0)
								m2_ = mooooood3[mod3 + d]
								m3_ = has3 | (1 if d==3 else 0)
								s_ = (m1_<<3)|(m2_<<1)|m3_
							
								j_ = (j*10 + d) % p

								dp[v][j_][s_] += dp[u][j][s]
								if(dp[v][j_][s_] >= mod):
									dp[v][j_][s_] -= mod

		u,v = v,u

	ret = 0
	for j in range(p) : 
		if j%p == 0 :
			continue

		for small in range(2) :
			for mod3 in range(3) :
				for has3 in range(2) :
					if (has3==0 and mod3 != 0):
						continue
					s = (small<<3)|(mod3<<1)|has3
					ret += dp[u][j][s];
					ret += -mod if ret>=mod else 0

	return ret




ans = calc(b)
ans = ans - calc(a)

ans += mod if ans<0 else 0

has3_ = 0
mod3_ = 0
modp_ = 0
for i in range(len(a)):
	k = ord(a[i])-ord('0')
	has3_ |= 1 if k == 3 else 0
	mod3_ = (mod3_ + k) % 3
	modp_ = (modp_ * 10 + k) % p

if (has3_!=0 or mod3_ == 0) and modp_ != 0 :
	ans += 1

ans %= mod

print(ans)