Two teams of robots are playing the game of cut-or-bend. The rules of the game are very simple:
- The team that has processed more details than its opponent is a winner.
- A detail is considered to be processed if it is either bent or cut.
- Each robot can perform both bending and cutting, but during the game it can perform only one of two functions.
- Each team consists of N players, K of them must be occupied with cutting. All the rest must be occupied with bending.
Input: Three arguments. Two lists of integers of equal size representing team's stats. An integer - a number of team's members that have to be occupied with cutting.
Output: An integer - the maximum score which can be obtained by the team.