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p259.java
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p259.java
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import java.math.BigInteger;
import java.util.Scanner;
public class p259 {
public static void main(String[] args){
Scanner s = new Scanner(System.in);
int exp = 0;
int entrada;
BigInteger capicuas = BigInteger.valueOf(1);
entrada = s.nextInt();
while(entrada != 0) {
if (entrada == 1) {
capicuas = BigInteger.valueOf(10);
} else if(entrada %2 == 0) {
exp = (entrada - 1) / 2;
capicuas = BigInteger.valueOf(10).pow(exp);
capicuas = BigInteger.valueOf(9).multiply(capicuas);
} else {
exp = entrada / 2;
capicuas = BigInteger.valueOf(10).pow(exp);
capicuas = BigInteger.valueOf(9).multiply(capicuas);
}
System.out.println(capicuas);
entrada = s.nextInt();
}
s.close();
}
}