Description

Each player in a tournament plays six games. There are no ties. The tournament director places the players in groups based on the results of games as follows:

• if a player wins $5$ or $6$ games, they are placed in Group $1$;

• if a player wins $3$ or $4$ games, they are placed in Group $2$;

• if a player wins $1$ or $2$ games, they are placed in Group $3$;

• if a player does not win any games, they are eliminated from the tournament.

Write a program to determine which group a player is placed in.

Input Format

The input consists of six lines, each with one of two possible letters: W (to indicate a win) or L (to indicate a loss).

Output Format

The output will be either $1, 2, 3$ (to indicate which Group the player should be placed in) or $-1$ (to indicate the player has been eliminated).

W
L
W
W
L
W

2

L
L
L
L
L
L

-1