import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
sys.setrecursionlimit(10**7)
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

s = input()
n = len(s)
t = 0
m = 0
for x,i in enumerate(s):
    if i=="1":
        m+=1
        t+=x+1
dp = [[0 for j in range(t+1)]for i in range(n+1)]
dp[0][0] = 1

for i in range(m):
    p = [[0 for j in range(t+1)]for i in range(n+1)]
    p,dp=dp,p
    for j in range(n+1):
        for k in range(t+1):
            now = p[j][k]
            if now==0:
                continue
            #print(j,k)
            for l in range(j+1,n+1):
                nk = k+l
                if nk>t:
                    continue
                #print(i,j,k,l,nk)
                dp[l][nk]+=now
    #print(dp)
ans = 0
for i in range(n+1):
    ans+=dp[i][t]
print(ans)