#include <iostream>
#include <vector>
#include <iomanip>
#include <map>
using namespace std;

struct account {
	int number;
	int bank;
	bool operator< (const account &a1) const {
		return (this->number < a1.number);
	}
	bool operator= (const account &a1) const {
		if((number == a1.number) && (bank == a1.bank))
			return true;
		return false;
	}
};

int num_accounts=666;
string operation("666");
char a;
float par_money;
account tmp,tmp2;

int main() {
	while (true) {
		cin >> num_accounts;
		map<account, float> accounts;
		
		if(num_accounts==0) {
			cout <<"goodbye"<<endl;
			return 0;
		}

		float bal;
		for (int i=0; i<num_accounts;i++) {
			account tmp;
			cin >> tmp.number >> a >> tmp.bank >> bal;
			accounts[tmp]=bal;
//			cout << "NEW" << tmp.number << " " << tmp.bank << " " << bal << endl;
		}
		
		operation="666";
		while (operation != "end") {
			cin >> operation;
		
/*		map<account, float>::iterator it;
		for (it = accounts.begin(); it != accounts.end(); it++)
			cout << "ucty: " << (it->first).number << " " << (it->first).bank << " " << (it->second) << endl;
*/
			if(operation == "create") {
				cin >> tmp.number >> a >> tmp.bank;
				if(accounts.find(tmp) != accounts.end()) {
					cout << "create: already exists" << endl;
				}
				else {
					accounts[tmp]=0;
					cout << "create: ok"<<endl;
				}
			}

			if(operation == "deposit") {
				cin >> tmp.number >> a >> tmp.bank >> par_money;
				if(accounts.find(tmp) == accounts.end()) { 
					cout << "deposit ";
			 		printf("%.2f",par_money);
					cout << ": no such account" <<endl;
				}
				else {
					map<account,float>::iterator it;
					it=accounts.find(tmp);
					it->second+=par_money;
					cout << "deposit ";
			 		printf("%.2f",par_money);
					cout <<": ok" << endl;
				}
			}
			
			if(operation == "withdraw") {
				cin >> tmp.number >> a >> tmp.bank >> par_money;
				if(accounts.find(tmp) == accounts.end()) { 
					cout << "withdraw ";
			 		printf("%.2f",par_money);
					cout << ": no such account" <<endl;
				}
				else if (accounts.find(tmp)->second+0.0001 <= par_money) {
//					cout << "odebirame: " << par_money << "   mame: " << accounts.find(tmp)->second << endl;
					cout << "withdraw ";
			 		printf("%.2f",par_money);
					cout << ": insufficient funds" << endl;
				}
				else {
					accounts.find(tmp)->second -= par_money;
					cout << "withdraw ";
			 		printf("%.2f",par_money);
				  cout	<<": ok" << endl;
				}
			}

			if(operation == "transfer") {
				cin >> tmp.number >> a >> tmp.bank >> tmp2.number >> a >> tmp2.bank >> par_money;
				if(accounts.find(tmp) == accounts.end()) {
					cout << "transfer ";
			 		printf("%.2f",par_money);
					cout << ": no such account" <<endl;
				}
				else if(accounts.find(tmp2) == accounts.end()) {
					cout << "transfer ";
			 		printf("%.2f",par_money);
					cout << ": no such account" <<endl;
				}
				else if((tmp.number == tmp2.number) && (tmp.bank==tmp2.bank)){
					cout << "transfer ";
			 		printf("%.2f",par_money);
					cout << ": same account" << endl;
				}
				else if (accounts.find(tmp)->second+0.0001 <= par_money) {
					cout << "transfer ";
			 		printf("%.2f",par_money);
					cout << ": insufficient funds" << endl;
				}
				else {
					accounts.find(tmp)->second -= par_money;
					accounts.find(tmp2)->second += par_money;
					cout << "transfer "; 
			 		printf("%.2f",par_money);
					cout <<": ";
					if(tmp.bank == tmp2.bank)
						cout << "ok" << endl;
					else
						cout << "interbank" << endl;
				}
			}
			
			if (operation == "end") {
				cout <<"end" << endl << endl;
			}

		}


	}


/*	for (int i=0;i<accounts.size();i++) 
		cout << setprecision(666) << accounts[i].number << " " << accounts[i].bank << " " << accounts[i].balance <<endl;
*/
	return 0;
}