def encode(strs):
    # write your code here
    res = ''
    for s in strs:
        encoded = str(len(s)) + '/' + s
        res += encoded
    return res
"""
@param: str: A string
@return: decodes a single string to a list of strings
"""
def decode(str):
    # write your code here
    res, i = [], 0
    while i < len(str):
        # For example, 12/abc
        e = i
        while e < len(str) and str[e] != '/':
            e += 1
        size = int(str[i:e])
        word = str[e + 1, e + 1 + size]
        i = e + 1 + size
        res.append(word)
    return res

print(encode(["lint", "code", "love", "you"]))