{"trustable":true,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eThe Arirang Show is a magnificent performance given annually in the North Korean capital Pyongyang. The show is very popular, and the cost of tickets can be as high as 300 dollars.\r\n\u003c/div\u003e\u003c/div\u003e\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eTens of thousands of dancers take part in the performance each year. In one of the episodes of the 2011 show \u003ci\u003en\u003c/i\u003e dancers line up and then divide into \u003ci\u003ed\u003c/i\u003e groups (\u003ci\u003ed\u003c/i\u003e is a proper divisor of \u003ci\u003en\u003c/i\u003e). In each of the groups the dancers make a circle holding each others\u0027 hands and circle around. There are dancers with numbers 1, \u003ci\u003ed\u003c/i\u003e + 1, 2\u003ci\u003ed\u003c/i\u003e + 1, …, \u003ci\u003en\u003c/i\u003e − \u003ci\u003ed\u003c/i\u003e + 1 in the first circle, dancers with numbers 2, \u003ci\u003ed\u003c/i\u003e + 2, \u003cnobr\u003e2\u003ci\u003ed\u003c/i\u003e + 2\u003c/nobr\u003e, …, \u003ci\u003en\u003c/i\u003e − \u003ci\u003ed\u003c/i\u003e + 2 in the second circle, and so on. In the last circle there are dancers with numbers \u003ci\u003ed\u003c/i\u003e, 2\u003ci\u003ed\u003c/i\u003e, …, \u003ci\u003en\u003c/i\u003e.\r\n\u003c/div\u003e\u003c/div\u003e\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eOrganizers of the show ask you to distribute the colors of the dancers\u0027 shirts so that in each circle any two neighbors wear shirts of different colors. You have been told the number \u003ci\u003en\u003c/i\u003e, but when you asked about the value of \u003ci\u003ed\u003c/i\u003e the organizers said: “You are not allowed to know this number.” \u003c/div\u003e\u003c/div\u003e\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eThe organizer can make shirts of only 26 different colors. Can you satisfy their request regardless of the choice of the number \u003ci\u003ed\u003c/i\u003e?\r\n\u003c/div\u003e\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eThe only line contains the integer \u003ci\u003en\u003c/i\u003e (2 ≤ \u003ci\u003en\u003c/i\u003e ≤ 300000).\u003c/div\u003e\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eOutput a line of length \u003ci\u003en\u003c/i\u003e consisting of lowercase English letters. The \u003ci\u003ei\u003c/i\u003e-th symbol should denote the color of the \u003ci\u003ei\u003c/i\u003e-th dancer\u0027s shirt (the colors are coded by letters from “a” to “z”). If there are several correct answers, output any of them. If it is impossible to arrange the colors as required, output “Impossible”.\r\n\u003c/div\u003e\u003c/div\u003e"}},{"title":"Sample","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e7\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eacacbdb\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}