/*#include<stdio.h>
int main()
{
int a;
scanf("%d", &a);
switch(a/10)(
case 9:
printf("A");
break;
case 8:
printf("B");
break;
case 7:
printf("C")
break;
case 6:
printf("D")
break;
default:
printf("E");
);
}
*/
#include<stdio.h>
int main();
{
int a;
scanf("%d", a);
printf("%d", a)
{if(a%10 == 1)(
if(a == 11)
printf("th"))
printf("st");
if(a%10 == 2)(
if(a == 12)
printf("th"))
printf("nd");
if(a%10 == 3)(
if(a == 13)
printf("th"))
printf("st");
}
else
printf("th");
return 0;
}