from itertools import groupby s=input() n=len(s) s=[s[i] for i in range(n)] mod=924844033 data=groupby(s) data=[(key,len(list(group))) for key,group in data] Start=1 End=1 if data[0][0]=="0": Start+=data[0][1] data=data[1:] if not data: print(Start-1) exit() if data[-1][0]=="0": End+=data[-1][1] data.pop() comp=[0]*len(data) for i in range(len(data)): comp[i]=data[i][1] n=len(comp) if n==1: print(comp[0]*Start*End) exit() odd=[comp[i] for i in range(n) if i%2==1] N=len(odd) N0 = 2**(N-1).bit_length() data = [None]*(2*N0) INF = (-1, 0) # 区間[l, r+1)の値をvに書き換える # vは(t, value)という値にする (新しい値ほどtは大きくなる) def update(l, r, v): L = l + N0; R = r + N0 while L < R: if R & 1: R -= 1 data[R-1] = v if L & 1: data[L-1] = v L += 1 L >>= 1; R >>= 1 # a_iの現在の値を取得 def _query(k): k += N0-1 s = INF while k >= 0: if data[k]: s = max(s, data[k]) k = (k - 1) // 2 return s # これを呼び出す def query(k): return _query(k)[1] ID=[-1]*n for i in range(N): start=0 end=N while end-start>1: test=(end+start)//2 if query(test)>=odd[i]: start=test else: end=test #print(i,start,odd[i]) if start!=0: ID[2*i+1]=start update(start+1,i+1,(i,odd[i])) else: if query(0)>=odd[i]: ID[2*i+1]=start update(start+1,i+1,(i,odd[i])) else: ID[2*i+1]=-1 update(0,i+1,(i,odd[i])) dp=[0]*n dp[0]=comp[0] pre=[0]*n for i in range(2,n,2): id=ID[i-1] if id==-1: res=comp[i-1]*dp[i-2] pre[i-1]=res #prel[i-1]=1 else: j=2*id+1 #res=(comp[i-1]*dp[i-2]+(comp[j]-comp[i-1])*premono[j])%mod res=(comp[i-1]*dp[i-2]+pre[j]-comp[i-1]*dp[j-1])%mod pre[i-1]=res #prel[i-1]=prel[j]+1 dp[i]=(comp[i]*res+dp[i-2]+comp[i])%mod #print(pre) #print(dp) print((dp[-1]*Start*End)%mod)