C :

#include <stdio.h>
#include <string.h>

int main()
{
//	freopen("ceshi.txt","r",stdin);
//	freopen("ceshiout.txt","w",stdout);
	int t;
	scanf("%d",&t);
	while(t--)
	{
		char s[110];
		scanf("%s",s);
		for(int i = 0;i < strlen(s);i++)
		{
			if(s[i] >= 'a' && s[i] <= 'n')
			{
				s[i] += 12;
			}
			else if(s[i] >= 'o' && s[i] <= 'z')
			{
				s[i] += -14;
			}
		}
		printf("%s\n",s);
	}
	return 0;
} 

C++ :

#include <stdio.h>
#include <string.h>

int main()
{
//	freopen("ceshi.txt","r",stdin);
//	freopen("ceshiout.txt","w",stdout);
	int t;
	scanf("%d",&t);
	while(t--)
	{
		char s[110];
		scanf("%s",s);
		for(int i = 0;i < strlen(s);i++)
		{
			if(s[i] >= 'a' && s[i] <= 'n')
			{
				s[i] += 12;
			}
			else if(s[i] >= 'o' && s[i] <= 'z')
			{
				s[i] += -14;
			}
		}
		printf("%s\n",s);
	}
	return 0;
}