rt！！！

#include <iostream>
#include <cstdio>
#include <string>
#include <cstring>
#include <algorithm> 

using namespace std;

int n, s, i1;
int a[10], f, g, cnt = 1, b[2500010];
string op, ad;

int g1(int x)
{
	int ans = 0, t = x;
	while (t)
	{
		ans = ans * 10 + t % 10;
		t /= 10;
	}
	return ans % 10;
}

int main()
{	
	scanf("%d", &n); 
	
	while (i1 < n)
	{
		i1 ++;
		printf("%d\n", i1);
		cin >> op >> ad;
		s = 0, cnt = 1, f = 0, g = 0;
		bool flag = 1;
		
		for (int i = 1; i <= 10; i ++ ) a[i] = 0;
		
		for (int i = 0; i < ad.size(); i ++ )
		{
			if (ad[i] >= '0' && ad[i] <='9')
			{
				int x = ad[i] - '0';
				a[cnt] = a[cnt] * 10 + x;
			}
			else
			{
				cnt ++;
				
				if(ad[i] == '.') f ++;
				if(ad[i] == ':') g ++;
			}
			s += int(ad[i]) * ad[i];
		}
		for (int i = 1; i <= 5; i ++ )
		{
			if(a[i] != 0 && g1(a[i]) == 0)
			{
				printf("ERR\n");
				flag = 0;
				break;
			}
		}
		if(flag == 0) continue;
		if(cnt != 5 || f != 3 || g != 1) printf("ERR\n");
		else if(a[1] > 255 || a[2] > 255 || a[3] > 255 || a[4] > 255 || a[5] > 65536)  printf("ERR\n");
		
		else
		{
			if(op == "Server")
			{
				if(b[s] == 0)
				{
					b[s] = i1;
					printf("OK\n");
				}
				else 
				{
					printf("FAIL\n");
				}
			}
			if(op == "Client")
			{         
				if(b[s] != 0)
				{
					printf("%d\n", b[s]);
				}
				else printf("FAIL\n");
			}
		}
	}
	return 0;
}