#include<stdio.h>
int main() {
	int i,n,j,test,re=0;
	while(scanf("%d", &test) != EOF) {
		int tmp = test,cnt = 0,h;
 
		h = test/10;				//個位數 
 
		if (test == 11) {			//11
			cnt = 2;
		}
 
		for(i=2;i<tmp;i++) {		//測試是否為prime 
			if(tmp%i != 0) {
				cnt = 1;
			}else{
				cnt = 0; 
				break;
			}
		}
 
 
		if (cnt == 1 && test != 11 && h != 0) {	//11和個位數不討論 
 
			while(test) {			//反轉 
			re *= 10;
			re += test%10;
			test /= 10;
		}
 
		for(i=2;i<re;i++) {    		//判斷是否為emirp 
			if(re%i != 0)
				cnt = 2;
			else{
				cnt = 1; 
				break;
				}
			}
		}
 
		if (cnt == 2)
			printf("%d is emirp.\n", tmp);
		if (cnt == 1)
			printf("%d is prime.\n", tmp);
		if (cnt == 0)
			printf("%d is not prime.\n", tmp);
	}
}

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

MTAKNQo5CjgKNAozCjIKNwoyCjEwCjUKNQo3CjgKNQo5CjQKNAoxMAo5NAo2MQoyOAo2Ngo1Nwo5OQo0NQo3MQozOAo1OQo1OQo4Mwo3Mwo1MwoxNwoxMQ==

10
5
9
8
4
3
2
7
2
10
5
5
7
8
5
9
4
4
10
94
61
28
66
57
99
45
71
38
59
59
83
73
53
17
11