Your colleagues enjoy playing table tennis, but they often forget who should serve in each round. They ask you to create a program that will determine the serving player based on the current round number.

Rules

• The game starts with the first round, or currentRound=1.
• Player 1 always starts the game by serving.
• A serving player alternates every two rounds
• currentRound cannot be a negative number or zero
• The original game rules are simplified: there is no "deuce" exception (service does not alternate at every point after '10-10')

Examples

• The Player 1 serves in the 1st round
• The Player 1 serves in the 2nd round
• The Player 2 serves in the 3rd round
• The Player 2 serves in the 4th round
• The Player 1 serves in the 5th round
• The Player 1 serves in the 6tx round
• The Player 2 serves in the 7th round
• The Player 2 serves in the 8th round
• And so on