wabbit try box contain food rest zoo coordinate plane point x_1y_1 point x_2y_2He rope use pull box he pull box stand exactly 1 unit away box direction coordinate axis he pull box standing move way direction 1 unit for example box point 12 wabbit standing point 22 pull box right 1 unit box end point 22 wabbit end point 32also wabbit 1 unit right leave pull box in case necessary exactly 1 unit away box if want pull box return point box also Wabbit can not point box locatedwabbit start point it take 1 second travel 1 unit right leave regardless pull box movingDetermine minimum time need box x_1y_1 x_2y_2 note point wabbit end matter