#include<iostream>
#include<vector>
#include<cstdio>
#include<map>
#include<string> 

using namespace std;

map<pair<int,int>, int> acc;
char s[50];
string str[] = {"damn","no such account","insufficient funds", "ok", "same account", "interbank", "end", "already exists"};

int main()
{
	int n,j,k,a,b;
	int r1,r2,r;

	scanf("%d\n",&n);
	while(n){
	for(int i = 0; i<n; i++) {
		scanf("%d/%d %d.%d\n",&j,&k,&r1,&r2);
		acc.insert(make_pair(make_pair(j,k), r1*100+r2));		
	}
	bool end = 0;
	int res = 0;
	while(!end) {
		res = 0;
		scanf("%s",s);
		switch(s[0]) {
			case 'w': scanf("%d/%d %d.%d\n",&j,&k,&r1,&r2); printf("withdraw %d.%02d: ",r1,r2); break;
			case 'd': scanf("%d/%d %d.%d\n",&j,&k,&r1,&r2); printf("deposit %d.%02d: ",r1,r2); break;
			case 't': scanf("%d/%d %d/%d %d.%d\n",&j,&k,&a,&b,&r1,&r2); printf("transfer %d.%02d: ",r1,r2); break;
			case 'c': scanf("%d/%d\n",&j,&k); printf("create: "); break;
			case 'e': end = 1; res = 6; break;
		}
		r = r1*100+r2;
		//printf("\n%s %d %d %.2f\n",s,j,k,r);
		if (!end) switch(s[0]) {
			case 'w': {
			//printf("val=%f=val ", acc[make_pair(j,k)]);
			if (acc.count(make_pair(j,k))==0) {
				res = 1;
				} 
			else if (r > acc[make_pair(j,k)]) {
				res = 2;
				}
			else {res = 3; acc[make_pair(j,k)]-=r;}
			break; 
			}
			case 'd': {
			if (acc.count(make_pair(j,k))==0) {
				res = 1;
				} 
			else {acc[make_pair(j,k)]+=r; res = 3;} 
			break;
			}
			case 't': {
			if ((acc.count(make_pair(j,k))==0) || (acc.count(make_pair(a,b))==0)) res = 1;
			else if (make_pair(j,k)==make_pair(a,b)) res = 4;
			else if (r > acc[make_pair(j,k)]) res = 2;
			else {
				if (k==b) res = 3;
				else res = 5;
				acc[make_pair(j,k)]-=r; acc[make_pair(a,b)]+=r;
				}
			
			break;
			}
			case 'c': {
			if (acc.count(make_pair(j,k))==1) res = 7;
			else { acc.insert(make_pair(make_pair(j,k),0)); res = 3;}
			break;
			}
		}
	printf("%s\n", str[res].c_str());
	}
scanf("%d\n",&n);
putchar('\n');
acc.clear();
}
printf("goodbye\n");
	return 0;
}