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

using namespace std;

int main()
{

	map<string, int> ucty;
	int n;
	while (scanf("%d",&n),n!=0) {
		ucty.clear();
		char buf[1000];
		string name;
		int cely,des;
		int kolik;
		for (int i=0;i<n;i++) {
			scanf("%s %d.%d",buf,&cely,&des);
			ucty[buf]=cely*100+des;
		}
		int end=0;
		while (!end) {
			scanf("%s",buf);
			printf("%s",buf);
			switch (*buf) {
			case 'w':{
				scanf("%s %d.%d",buf,&cely,&des);
				kolik=cely*100+des;
				name=buf;
				printf(" %d.%02d: ",cely,des);
				
				if (ucty.find(name)!=ucty.end()) {
					if (ucty[name]>=kolik) {
						printf("ok");
						ucty[name]=ucty[name]-kolik;
					} else {
						printf("insufficient funds");
					}
				} else {
					printf("no such account");
				}
				break;}
			case 'd':{
				scanf("%s %d.%d",buf,&cely,&des);
				printf(" %d.%02d: ",cely,des);
				kolik=cely*100+des;
				name=buf;
				if (ucty.find(name)!=ucty.end()) {
					printf("ok");
					ucty[name]=ucty[name]+kolik;
				} else {
					printf("no such account");
				}
				break;}	
			case 't':{
				char buf1[1000];			
				scanf("%s %s %d.%d",buf,buf1,&cely,&des);
				name=buf;
				printf(" %d.%02d: ",cely,des);
				string name1(buf1);
	
				if (ucty.find(name)==ucty.end() || ucty.find(name1)==ucty.end()) {
					printf("no such account");
					break;
				}
	
				if (name==name1) {
					printf("same account");
					break;
				}
	
				if (ucty[name]>=kolik) {
					if (name[5]==name1[5])
						printf("ok");
					else
						printf("interbank");
					ucty[name]=ucty[name]-kolik;
					ucty[name1]=ucty[name1]+kolik;
				} else {
					printf("insufficient funds");
				}
				break;}
			case 'c':{
				scanf("%s",buf);
				printf(": ");
				name=buf;
				if (ucty.find(name)==ucty.end()) {
					printf("ok");
					ucty[name]=0;
				} else {
					printf("already exists");
				}
				break;}	
			case 'e':
				end=1;
				//printf("end");
				break;
			}
			printf("\n");
		}
		

		printf("\n");
		

	}
	printf("goodbye\n");

	return 0;
}