lestion: $2$ of $2$

ere is an interschool football match between team A and am B$.$

e football ground is divided into a grid having $N$ rows and A olumns and each cell has a player in it$.$

player from the cell $(i,j)$ can pass the ball only to the player the cells $(i+l,j-1),(i+l,j),$ and $(i+1,j+1),$ provided that they xist in the grid and belong to the same team of the player in ell $(i,j).$

If a player in the first row can pass the ball to a player in the last row, then all the players involved in passing the ball $($including the first player and last player$)$ will be considered active players.

A player is also an active player if he is already in the last row.

If a player belongs to team A$,$ he will be denoted by $"$A$"$ and if a player belongs to team $B,$ he will be denoted by $"B".$

Find the total number of active players in team $A$ by considering all ways of passing the ball from the first row to the last row.