------Input------ 5 ------Answer----- 1 2 3 4 5 16 17 18 19 6 15 24 25 20 7 14 23 22 21 8 13 12 11 10 9 ------Your output----- 16 2 3 4 5 15 25 18 19 6 14 24 0 20 7 13 23 22 21 8 12 11 10 9 0