A player can navigate through the following maze one box at a time. The rewards are accumulated when the player reaches a reward box $(+1$ will increase your score while $-1$ will decrease your score$).$ Which sequence of actions, for the first $7$ steps, would get the player the highest reward possible if he starts from the box $(1,1)?$

$1$

$2$

$3$

$4$

$5$

$6$

$7$