## CCC '16 J1 - Tournament Selection

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Points: 3
Time limit: 2.0s
Memory limit: 64M

Problem type
##### Canadian Computing Competition: 2016 Stage 1, Junior #1

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 Specification

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 Specification

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).

#### Sample Input 1

W
L
W
W
L
W

#### Output for Sample Input 1

2

#### Sample Input 2

L
L
L
L
L
L

#### Output for Sample Input 2

-1