In the coding string

integer playerScore

integer computerScore

for i $=1$; i ; i $=$ i $+1$

integer playerSelection

integer computerSelection

playerSelection $=$ GetNextInput$()$

computerSelection $=$ RandomNumber$(1,3)$

if playerSelection $=1$ and computerSelection $=$

Put "Player wins this round!" to output

playerScore $=$ playerScore $+1$

else if playerSelection $=2$ and computerSelection $=1$

Put "Player wins this round!" to output

playerScore $=$ playerScore $+1$

else if playerSelection $=3$ and computerSelection $=2$

Put "Player wins this round!" to output

playerScore $=$ playerScore $+1$

else if playerSelection $=$ computerSelection

Put "It's a tie!" to output

else

Put "Computer wins this round!" to output

computerScore $=$ computerScore $+1$

end if

Put "Player score: $"$ to output

Put playerScore to output

Put $"$

$"$ to output

Put "Computer score: $"$ to output

Put computerScore to output

Put $"$

$"$ to output

end for

if playerScore $>$ computerScore

Put "Player wins the game!" to output

else if playerScore $$ computerScore

Put "Computer wins the game!" to output

else

Put "The game is a tie!" to output

end if

I keep getting a the message "Line $4$: In loop expression, unknown word $\text{'}$i$\text{'}"$ and im not sure how to fix this so it could work