#include <iostream>
#include <cstdio>
#include <string>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <utility>
#include <sstream>
using namespace std;

#define FOR(i,n) for (int i=0; i<int(n); i++)
//#define FOR(i,a,n) for (int i=a; i<int(n); i++)
#define FORD(i,n) for (int i=int(n)-1; i>=0; i--)
#define pb push_back
#define fi first
#define se second

map<string,int> accounts;

typedef long long ll;
typedef pair<int, int> pi;


int init(){
    accounts.clear();
    int n;
    scanf("%d",&n);
    char tmp[200];

    FOR(q,n) {
	int a,b;
	scanf("%s %d.%d",tmp,&a,&b);
	string s=string(tmp);
	accounts[s]=a*100+b;
    }
    return n;

}

char tmp[100];
char tmp2[100];
char tmp3[100];

void solve(){
    while (true) {
	scanf("%s",tmp); 

	if (tmp[0]=='e') {
	    printf("end\n\n");
	    break;
	}

	if (tmp[0]=='c') {
	    printf("create: ");
	    scanf("%s",tmp);
	    string s=string(tmp);

	    if (accounts.find(s)!=accounts.end()) {
		printf("already exists\n");
	    } else {
		printf("ok\n");
		accounts[s]=0;
	    }
	    continue;
	}

	if (tmp[0]=='d') {
	    int a,b;
	    scanf("%s %d.%d",tmp2,&a,&b);
	    printf("deposit %d.%02d: ",a,b);
	    string s=string(tmp2);
	    if (accounts.find(s)==accounts.end()) {
		printf("no such account\n");
	    } else {
		printf("ok\n");
		accounts[s]+=100*a+b;
	    }
	    continue;
	}

	if (tmp[0]=='w') {
	    int a,b;

	    scanf("%s %d.%d",tmp2,&a,&b);
	    printf("withdraw %d.%02d: ",a,b);
	    string s=string(tmp2);
	    if (accounts.find(s)==accounts.end()) {
		printf("no such account\n");
	    } else {
		if (accounts[s]<100*a+b) {
		    printf("insufficient funds\n");
		} else {
		    accounts[s]-=100*a+b;
		    printf("ok\n");
		}
	    }
	    continue;
	}

	if (tmp[0]=='t') {
	    int a,b;
	    scanf("%s %s %d.%d",tmp2,tmp3,&a,&b);
	    string from=string(tmp2);
	    string to=string(tmp3);
	    printf("transfer %d.%02d: ",a,b);

	    if (accounts.find(from)==accounts.end() ||
		accounts.find(to) == accounts.end()) {
		printf("no such account\n");
	    } else {
		if (from==to) {
		    printf("same account\n");
		} else {
		    if (accounts[from]<100*a+b) {
			printf("insufficient funds\n");
		    } else {
			accounts[from]-=100*a+b;
			accounts[to]+=100*a+b;

			if (from[5]!=to[5]) printf("interbank\n"); else 
			    printf("ok\n");



		    }
		}
	    }



	}

    }
}

int main()
{

    while (init()) solve();
    printf("goodbye\n");
}