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import java.util.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.next(); StringBuilder bd = new StringBuilder(str); StringBuilder res = bd.reverse(); while(res.charAt(0)=='0') res.delete(0, 1); if(res.charAt(res.length()-1) == '-') { res.delete(res.length()-1, res.length()); } System.out.println(res); } }
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