import java.util.Scanner;

//Enter three integers x , y , z , please put the three number from small to large output
public class fitteen {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//首先肯定是键盘录入
		Scanner sc=new Scanner(System.in);
		//定义键盘输入的三个量,即是x/y/z
		int x=sc.nextInt();
		int y=sc.nextInt();
		int z=sc.nextInt();
		//关闭键盘输入
		sc.close();
		smalltolarge(x,y,z);
		

	}
	 //定义三个数从小到大排布
	 static void smalltolarge(int x,int y,int z)
	 {
		 //定义一个中间数
		 int temp=0;
		 //定义一个StringBuffer
		 String stb=new String();
		//本来想比较从x<y这方面着手的,但是发现这样的话程序完全写不下去,所以我们只考虑x>y的情况
		 if(x>y)
		 {
			  temp=x;
			  x=y;
			  y=temp;
		 }
		 if(x>z)
		 {
			 temp=x;
			 x=z;
			 z=temp; 
		 }
		 if(y>z)
		 {
			 temp=y;
			 y=z;
			 z=temp;
		 }
		 stb=x+"<"+y+"<"+z;
		 System.out.println(stb);
		
				 
		 
	 }

}