
Лимит времени 2000/4000/4000/4000 мс. Лимит памяти 65000/65000/65000/65000 Кб.
Сложность Альфа
Santa Claus has come with a bag full of presents this year. A group of
N kids stand in line, anxious to get their gifts. Santa Claus
takes a present from his bag and gives it to the kid who is currently
first in line. That kid then goes to the end of the line, unless he
already has 4 gifts, in which case, he goes home. This process continues
as long as there are presents in the bag and kids in the line.
You are given M gifts containing the presents in Santa's bag,
in the order they are given away. Output the gifts each kid received.
Input
The first line will contain two numbers N and M
(1 ≤ N ≤ 50, 1 ≤ M ≤ 50). Next M
lines will contain gifts in the order they are given away. Each
gift will contain between 1 and 10 lowercase letters ('a''z'), inclusive.
Output
Output should contain N lines exactly. ith line should
contain gifts description for ith kid. ith line
starts with k_{i}  number of gifts the ith kid received
(0, if no gifts). Next k_{i} gifts follow in the order the
kid received them, separated by spaces.
Input 1

Input 2

Input 3

3 4
ball
plane
robot
puzzle

5 3
ball
plane
robot

2 4
ball
ball
plane
plane

Output 1

Output 2

Output 3

2 ball puzzle
1 plane
1 robot

1 ball
1 plane
1 robot
0
0

2 ball plane
2 ball plane

Для отправки решений необходимо выполнить вход.
