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Combination LockNow that you're back to school for another term, you need to remember how to work the combination lock on your locker. A common design is that of the Master brand, shown below.
The lock has a dial with 40 calibration marks numbered 0 to 39. A combination consists of 3 of these numbers; for example: 15–25–8. To open the lock, the following steps are taken:
Given the initial position of the dial and the combination for the lock, how many degrees is the dial rotated in total (clockwise plus counterclockwise) in opening the lock? Input SpecificationThe input consists of several test cases. For each case, there is a line of input containing 4 integers between 0 and 39. The first number is the position of the dial. The next three numbers are the combination. Consecutive numbers in the combination will be distinct. A line containing 0 0 0 0 follows the last case. Output SpecificationFor each case, print a line with a single integer: the number of degrees that the dial must be turned to open the lock. Sample Input
Output for Sample Input
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University of Debrecen; Faculty of Informatics; v. 09/30/2024 |