Instructions

You are developing a system to help the staff of a football/soccer club's website report on matches. Data is received from various sources and piped into a single stream after being cleaned up.

1. Output descriptions of the players based on their shirt number

The team only ever plays a 4-3-3 formation and has never agreed with the 1965 change to the rules allowing for substitutions, never mind enlarged squads.

The player descriptions are as follows:

1 -> "goalie"
2 -> "left back"
3 & 4 "center back"
5 -> "right back"
6, 7, & 8 -> "midfielder"
9 -> "left wing"
10 -> "striker"
11 -> "right wing"

Implement the static FootballMatchReports.onField() method to output a player description based on their shirt number.

2. Output "invalid" if the shirt number is not part of the official list

Modify the FootballMatchReports.onField() method to return 'invalid' when a shirt number outside the range 1-11 is processed.