英语里，序数词的缩写形式参见下表：
1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th
11th 12th 13th 14th 15th 16th 17th 18th 19th 20th
21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th
31st 32nd 33rd 34th 35th 36th 37th 38th 39th 40th
41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th
51st 52nd 53rd 54th 55th 56th 57th 58th 59th 60th
61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th
71st 72nd 73rd 74th 75th 76th 77th 78th 79th 80th
81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th
91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th
请编写函数，输出序数词缩写。
函数原型
void ShowOrdAbbr(int x);
裁判程序
#include <stdio.h>
void ShowOrdAbbr(int x);
int main()
{
int x;
scanf("%d", &x);
ShowOrdAbbr(x);
putchar('\n');
return 0;
}
/* 你提交的代码将被嵌在这里 */
输入格式
正整数
输出格式
序数词缩写
输入样例1
11
输出样例1
11th
输入样例2
61
输出样例2
61st
