import sys
readline = sys.stdin.readline
N, L, R = map(int, readline().split())

Fib = []

a, b = 1, 1
while b <= R:
    Fib.append(b)
    a, b = b, a+b
L -= 1
a, b = 1, 1
while b <= L:
    Fib.remove(b)
    a, b = b, a+b

Fib = [list(map(int, str(s))) for s in Fib]
S = set()
S.add(tuple())
banned = set()
for f in Fib:
    for l in range(len(f)):
        S.add(tuple(f[:l+1]))
    banned.add(tuple(f))

D = dict()
Di = dict()
for i in range(len(S)):
    s = S.pop()
    D[s] = i
    Di[i] = s

emp = D[tuple()]
Edge = []
for i in range(len(Di)):
    s = list(Di[i])
    E = []
    for num in range(10):
        t = tuple(s+[num])
        lt = len(t)
        for ti in range(lt+1):
            if t[ti:] in banned:
                break
        else:
            for ti in range(lt+1):
                if t[ti:] in D:
                    E.append(D[t[ti:]])
                    break
    Edge.append(E)

LD = len(D)
dp = [0]*LD
dp[emp] = 1
MOD = 10**9+7
for _ in range(N):
    dp2 = [0]*LD
    for j in range(LD):
        dj = dp[j]
        if not dj:
            continue
        for e in Edge[j]:
            dp2[e] = (dp2[e] + dj)%MOD
    dp = dp2[:]
print((sum(dp)-1)%MOD)