#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;

const char *cmds[10] =
    { "CCC", "ACG", "UGA", "UGC", "UAC"
    , "GCG", "UCC", "AGG", "UGU", "CAC"
    };

void Stop()	{ printf("%s",cmds[0]);}
void Next()	{ printf("%s",cmds[1]);}
void Prev()	{ printf("%s",cmds[2]);}
void Inc()	{ printf("%s",cmds[3]);}
void Dec()	{ printf("%s",cmds[4]);}
void Out()	{ printf("%s",cmds[5]);}
void In()	{ printf("%s",cmds[6]);}
void Start(){ printf("%s",cmds[7]);}
void End()	{ printf("%s",cmds[8]);}

int d;

void Mod(void)
{
	Start();
	
	Dec();// 2
	
	Next();// 3
	
	Inc();
	Start();
	Dec();
	End();
	Dec();
	
	Next();// 4
	
	Inc();
	
	Prev();// 3
	Prev();// 2
	
	End();
	
	Next();// 3
	
	Inc();
	
	Start();
	
	Dec();
	
	Next();// 4
	
	for(int i=1; i<=d; ++i)
		Inc();
	
	Prev();// 3
	
	End();
	
	Next();// 4
	
	Start();
	
	Dec();
	
	Prev();// 3
	Prev();// 2
	
	Inc();
	
	Next();// 3
	Next();// 4
	
	End();
	
	Prev();// 3
	Prev();// 2
}

int main(void)
{
	scanf("%d",&d);
	
	In();// 0
	Inc();
	
	Start();
	
	Dec();
	
	Next();// 1
	Next();// 2
	
	for(int i=1; i<=d; ++i)
		Inc();
	
	Prev();// 1
	
	Start();
	
	Dec();
	
	Next();// 2
	
	for(int i=1; i<=10; ++i)
	{
		Dec();
		Mod();
	}
	
	Prev();// 1
	
	End();
	
	Prev();// 0
	
	Start();
	
	Dec();
	
	Next();// 1
	Next();// 2
	
	Dec();
	Mod();
	
	Prev();// 1
	Prev();// 0
	
	End();
	
	Next();// 1
	
	for(int i=1; i<=d; ++i)
		Inc();
	
	Next();// 2
	
	Start();
	
	Dec();
	
	Prev();// 1
	Dec();
	Next();// 2
	
	End();
	
	Prev();// 1
	Prev();// 0
	
	In();
	Inc();
	
	End();
	
	Next();// 1
	
	Start();
	
	Next();// 2
	Out();
	Stop();
	
	End();
	
	Inc();
	Out();
	Stop();
	
	printf("\n");
	return 0;
}