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import java.util.Scanner;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int tag = 0;
int sum1 = 0;
int sum2 = 0;
for(int i = 1; i < 10; i++)
{
for(int j = 0; j < 10; j++)
{
for(int k = 0; k < 10; k++)
{
sum1 = (i + j) * 2 + k;
if(sum1 == n)
{
System.out.println("" + i + j + k + j + i);
tag++;
}
}
}
}
for(int i = 1; i < 10; i++)
{
for(int j = 0; j < 10; j++)
{
for(int k = 0; k < 10; k++)
{
sum2 = (i + j + k) * 2;
if(sum2 == n)
{
System.out.println("" + i + j + k + k + j + i);
tag++;
}
}
}
}
if(tag == 0)
{
System.out.println("-1");
}
}
}
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原文地址:http://blog.csdn.net/l243225530/article/details/45543099