题解 | #求最大连续bit数#

import sys

for line in sys.stdin:
    count1 = 0
    re = {0}
    a = int(line.strip())
    if a == 1:
        print("1")
        sys.exit()
    else:
        a1 = bin(a)[2:]
        for i in a1:
            if i == '1':
                count1 +=1
            elif i == '0':
                re.add(count1)
                count1 = 0
            re.add(count1)
        print(max(re))