#include <iostream>
#include <iomanip>
#include <cstdio>
#include <map>
#include <cmath>

using namespace std;

int ddd(double f) {
	int i = (int)f;
	int p;
	for (p = 0; i > 0; p++) {
		i /= 10;
	}
	return p;
}
void aaa(double fl) {
	double f = fl;
	f *= 100;
	int i = (int)f;
	if (i%100 == 0) cout << ".0";
	if (i%10 == 0) cout << "0";	
}

class Acc {
	private:
	int num;
	double val;
	public:
	Acc(int n, double v) {
		num = n;
		val = v;
	}
	bool vyber(double v) {
		if ((val-v) >= 0.0) {
			val-=v;
			return true;
		}
		else return false;
	}
	bool vloz(double v) {
		val += v;
		return true;
	}
};

class Pole {
	private:
		map<int,Acc*> u;
	public:
	Pole() {
	}
	~Pole() {
		//u.erase();
	}
	void zaloz(int a, double v) {
		pair<map<int, Acc*>::iterator,bool> p;
		p = u.insert(make_pair(a, new Acc(a,v)));
	}
	void pridej(int a) {
		pair<map<int, Acc*>::iterator,bool> p;
		p = u.insert(make_pair(a, new Acc(a,0)));
		if (p.second) {
			cout << "create: ok\n";
		}
		else {
			cout << "create: already exists\n";
		}
	}
	void vloz(int a, double v) {
		map<int,Acc*>::iterator i = u.find(a);
		if (i != u.end()) {
			(*i).second->vloz(v);
			cout << "deposit " << setprecision(ddd(v)+2) <<  v ;aaa(v); cout  << ": ok\n";
		}
		else {
			cout << "deposit " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": no such account\n";
		}
	}
	void vyber(int a, double v) {
		map<int,Acc*>::iterator i = u.find(a);
		if (i != u.end()) {
			if ((*i).second->vyber(v)) {
				cout << "withdraw " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": ok\n";
			}
			else {
				cout << "withdraw " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": insufficient funds\n";
			}
		}
		else {
			cout << "withdraw " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": no such account\n";
		}
	}
	void trans(int a, double v, int b) {
		map<int,Acc*>::iterator i = u.find(a);
		map<int,Acc*>::iterator j = u.find(b);
		if (i == j) {
			cout << "transfer " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": same account\n";
		}
		else if (i != u.end() && j != u.end()) {
			if ((*i).second->vyber(v)) {
				(*j).second->vloz(v);
				if (a%10 == b%10) {
					cout << "transfer " <<  setprecision(ddd(v)+2)  << v ;aaa(v); cout  << ": ok\n";
				}
				else {
					cout << "transfer " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": interbank\n";
				}
			}
			else {
				cout << "transfer " << setprecision(ddd(v)+2)  << v ;aaa(v); cout  << ": insufficient funds\n";
			}
		}
		else {
			cout << "transfer " << setprecision(ddd(v)+2)   << v ;aaa(v); cout  << ": no such account\n";
		}
	}
};

int main(void) {
	Pole u;
	int p;
	cin >> p;
// 	cout << p << endl;
	while (p != 0) {
		u.erase();
		for (int i = 0; i < p; i++) {
// 			int a = 0;
// 			for (int j = 0; j < 4; j++) {
// 				int o = getchar();
// 				o -= '0';
// 				cout << ">>" << o << endl;
// 				a *= 10;
// 				a += o;
// 			}
// 			int c = getchar();
// 			c = getchar();
// 			c -= '0';
// 			a *= 10;
// 			a += c;
// 			c = getchar();
// 			int a,b;
// 			cin >> a >> " - ";
// 			cout << a;
// 			cin >> b;
// 			cout << b;
// 			a *= 10;
// 			a += b;
			char a[7];
			cin >> a;
// 			cout << a << endl;
			a[4] = a[5];
			a[5] = 0;
			int b = atoi(a);
			double v = 0;
			scanf("%lf\n", &v);
			u.zaloz(b, v);
// 			cout << a << " : "<< v ;aaa(v); cout  << endl;
		}
		char st[10];
		st[0] = getchar();
		int a,c;
		char ch[7];
		double v;
		bool en = true;
// 		cout << st << endl;
		while (en) {
			//cout << st[0];
			switch (st[0]) {
				case 'c':
// 					scanf("%d/%d\n",&a,&b);
// 					a *= 10;
// 					a += b;
 					cin.ignore(6);
					cin >> ch;
					ch[4] = ch[5];
					ch[5] = 0;
					a = atoi(ch);
// 					cin >> v;
cin.ignore();
					u.pridej(a);
				break;
				case 'd':
					cin.ignore(7);
// 					scanf("%d/%d %f\n",&a,&b,&v);
// 					a *= 10;
// 					a += b;
					cin >> ch;
					ch[4] = ch[5];
					ch[5] = 0;
					a = atoi(ch);
					cin >> v;
// 						cout << "a: " << a << endl;
//  					cout << "v: " << v ;aaa(v); cout  << endl;
					u.vloz(a,v);
cin.ignore();
				break;
				case 'w':
					//cout << "okok" << endl;
// 					scanf("%d/%d %f\n",&a,&b,&v);
// 					a *= 10;
// 					a += b;
					cin.ignore(8);
					cin >> ch;
					ch[4] = ch[5];
					ch[5] = 0;
					a = atoi(ch);
					cin >> v;
					u.vyber(a,v);
//  					cout << "a: " << a << endl;
//  					cout << "v: " << v ;aaa(v); cout  << endl;

// 					return 1;
					cin.ignore();
				break;
				case 't':cin.ignore(8);
					/*
					scanf("%d/%d %d/%d %f\n",&a,&b,&c,&d,&v);
					a *= 10;
					a += b;
					c *= 10;
					c += d;*/
					cin >> ch;
					ch[4] = ch[5];
					ch[5] = 0;
					a = atoi(ch);
					cin >> ch;
					ch[4] = ch[5];
					ch[5] = 0;
					c = atoi(ch);
					cin >> v;
					u.trans(a,v,c);
					cin.ignore();
				break;
				default: cin.ignore(4); cout << "end\n\n" ;en = false;
			}
			if (en) st[0]=getchar();
		}
		cin >> p;
// 		cout << "p" << p <<endl;
	}
	cout << "goodbye" << endl;
	return 0;
}