$ java Nm 5
Welcome to Nm
Player 1: Computer
Player 2: Human
Remaining matches: 5
Computer removes 1 matches
Remaining matches: 4
Your move. There are 4 matches
1
Human removes 1 matches
Remaining matches: 3
Computer removes 1 matches
Remaining matches: 2
Your move. There are 2 matches
1
Human removes 1 matches
Remaining matches: 1
Computer loses, Human wins.

$ java Nm 5
Welcome to Nm
Player 1: Computer
Player 2: Human
Remaining matches: 5
Computer removes 1 matches
Remaining matches: 4
Your move. There are 4 matches
2
Human removes 2 matches
Remaining matches: 2
Computer removes 1 matches
Remaining matches: 1
Human loses, Computer wins.

$ java Nm 5
Welcome to Nm
Player 1: Computer
Player 2: Human
Remaining matches: 5
Computer removes 1 matches
Remaining matches: 4
Your move. There are 4 matches
9
Sorry, illegal move.
Please choose at least one match and at most 2
Your move. There are 4 matches
-1
Sorry, illegal move.
Please choose at least one match and at most 2
Your move. There are 4 matches
2
Human removes 2 matches
Remaining matches: 2
Computer removes 1 matches
Remaining matches: 1
Human loses, Computer wins.