Seeing that the world cup is very popular, robots also want to show their talents. We want to fight robots through penalty kicks. Each time the robot shoots at the goal, the position is marked by an integer, and the defensive position of the human goalkeeper is also marked by an integer. If the shooting position is different from the defensive position, it is considered as the goal. If the robot is allowed to take n penalty shots, how many times can the robot shoot and score?
In the first line, a positive integer n represents the number of times the robot has taken a penalty.
The second line is n integers separated by spaces,representing the position of the robot shooting at the goal in turn.
The third line is n integers separated by spaces,representing the positions that human goalkeepers defend in turn.
Note: all the above data are integers between [0,100].
It is aninteger, that is, the number of times the robot shots and scores.