t = open("tests.in", "rb")
out = open("out.txt", "wb")
s = t.readline().split()[0]
z = []
lst = 0
print(len(s))
while s.find(b"\xd0\xac", lst) != s.find(b"."):
    z.append(s[lst:s.find(b"\xd0\xac", lst)])
    lst = s.find(b"\xd0\xac", lst) + 2
z.append(s[lst:])
for s in z:
    a = []
    for i in range(0, len(s), 22):
        c = s[i:i + 22]
        c = c.replace(b"\xd0\xab", b'1')
        c = c.replace(b"\xd1\x8b", b'0')
        a.append(int(c, 2))
    for i in a:
        out.write(chr(i).encode())