using System;
public class test
{
public int FindLargest(int num)
int res =0;
if(num > 100 && num <1000)
//1s
int a=num % 10;
int num1= num /10;
// 10s
int b =num1 % 10 ;
int num2 = num1 /10 ;
// 100s
int c = num2 ;
if(a>=b && a>=c)
if(b>c)
res=(a*100)+(b*10)+c;
}
else
res=(a*100)+(c*10)+b;
}else if(b>=a && b>=c)
if(a>c)
res=(b*100)+(a*10)+c;
res=(b*100)+(c*10)+a;
else if (c>=b && c>=a)
if(b>a)
res=(c*100)+(b*10)+a;
res=(c*100)+(a*10)+b;
return res;
public class Program
public static void Main()
test test1 =new test();
Console.WriteLine(test1.FindLargest(123));
Console.WriteLine(test1.FindLargest(898));
Console.WriteLine(test1.FindLargest(998));
