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public enum Position {
      BOSS(6) {
           @Override
           public Position next() {
                 return PROGRAMMER;
           }
      },
      PROGRAMMER {
           @Override
           public Position next() {
                 return MANAGER;
           }
      },
      MANAGER(){
           @Override
           public Position next() {
           return null;
           }   
      } ;
      Position() {}
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import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
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