#include <stdio.h>

int main()
{
char c;
int d,f,g,k;
int a=1,i;
double y;
long long int x;
int b[100000];
long long int s[100000];
scanf("%d",&k);
a=k;
while (a!=0) 
{
for (i=0;i<=100000;i++)
	{
	b[i]=0;
	s[i]=0;
	}
a=k;

if (a>0) 
{
for (i=0;i<a;i++)
	{
	scanf("%d",&d);
	scanf("%c",&c);
	scanf("%d",&f);
	d=d*10+f;
	scanf("%c",&c);
	scanf("%lf",&y);
	x=y*100;
	s[d]=x;	

	b[d]=1;				
	}
}
while (a>0)
{
scanf("%c",&c);
if (c=='c') 
	{
	for (i=0;i<6;i++)
		scanf("%c",&c);
	
	scanf("%d",&d);
	scanf("%c",&c);
	scanf("%d",&f);
	d=d*10+f;
	
	if (b[d]==1) {printf("create: already exists\n");}
	else {b[d]=1; printf("create: ok\n");}
	}

else if (c=='d') 
	{
	for (i=0;i<7;i++)
		scanf("%c",&c);
	
	scanf("%d",&d);
	scanf("%c",&c);
	scanf("%d",&f);
	d=d*10+f;
	
	scanf("%lf",&y);
	x=y*100;
	
	if (b[d]==1) { printf("deposit %d.%d",x/100,x%100);s[d]=s[d]+x;if (x%100==0) printf("0");printf(": ok\n");}
	else {printf("deposit %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": no such account\n");}
	}



else if (c=='w') 
	{
	for (i=0;i<7;i++)
		scanf("%c",&c);
	
	scanf("%d",&d);
	scanf("%c",&c);
	scanf("%d",&f);
	d=d*10+f;
	
	scanf("%lf",&y);
	x=y*100;

	
	if (b[d]==1 && s[d]>=x) { 
				printf("withdraw %d.%d",x/100,x%100);
				s[d]=s[d]-x;
				if (x%100==0) printf("0");
				printf(": ok\n");
				}
	else if (b[d]==1) {printf("withdraw %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": insufficient funds\n");}
	else { printf("withdraw %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": no such account\n");}
	}


else if (c=='t') 
	{
	for (i=0;i<7;i++)
		scanf("%c",&c);
	
	scanf("%d",&d);
	scanf("%c",&c);
	scanf("%d",&f);
	d=d*10+f;
	
	scanf("%d",&g);
	scanf("%c",&c);
	scanf("%d",&f);
	g=g*10+f;

	scanf("%lf",&y);
	x=y*100;
	
	if (g==d) { printf("transfer %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": same account\n");}
	else if (b[d]==0) {printf("transfer %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": no such account\n");}
	else if (b[g]==0) {printf("transfer %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": no such account\n");}
	else if (s[d]<x) { printf("transfer %d.%d",x/100,x%100);if (x%100==0) printf("0");printf(": insufficient funds\n");}
	else if (d%10==g%10) 
		{ printf("transfer %d.%d",x/100,x%100);s[d]=s[d]-x; s[g]=s[g]+x;if (x%100==0) printf("0");printf(": ok\n");}
	
	else {printf("transfer %d.%d",x/100,x%100);s[d]=s[d]-x; s[g]=s[g]+x;if (x%100==0) printf("0");printf(": interbank\n");}
	}

else if (c=='e')
	{
	printf("end\n");
	printf("\n");
	scanf("%c",&c);
	scanf("%c",&c);
	scanf("%c",&c);
	scanf("%d",&k);
	a=0;
/*printf("dBUGACCC %d: ok\n",a);


	cislo=0;
	while (c>47)&&(c<59)
		{
		cislo=cislo*10+c-48;
		scanf("%d",&c);
		}
			
	a=cislo;	
			printf("dBUGACCC %d: ok\n",a);*/
	} 
}
a=k;
}
printf("goodbye\n");
return(0);
}