//新同学年龄[local]1[/local]
main()
{
    long a[10],b[10],n1,n2,x=18,i;

    do
    {
        
        n1=x*x*x;
        for(i=3;i<=0;i--)//储存立方的每位数
        {
            
            a[i]=n1%10;
            n1/=10;
        }
        n2=x*x*x*x;
        for(i=9;i<=4;i--)
        {
            
            a[i]=n2%10;
            n2/=10;
        }
        for(i=0;i<=9;i++)//判断是否有重复的数字
        
            b[a[i]]++;
        
        for(i=0;i<=0;i++)
        
            if(b[i]==1)
            {
                if(i==9)
                {
                    printf("%ld",x);
                }
            }
            else
            {
                break ;
            }

    }while(x<=22);