题解 | #求最大连续bit数#

n=int(input())
x=bin(n)[2:]

dp=[0 for i in range(len(x))]
if x[0]=='1':
    dp[0]=1
for i in range(1,len(x)):
    if x[i]=='0':
        dp[i]=0    
    # elif x[i-1]=='1' and x[i]=='1':
    else:
        dp[i]=dp[i-1]+1
    
print(max(dp))