#include<bits/stdc++.h>

using std::cin;
using std::cout;

const std::string INC = "UGC";
const std::string DEC = "UAC";
const std::string IN = "UCC";
const std::string BEGIN = "AGG";
const std::string END = "UGU";
const std::string next = "ACG";
const std::string prev = "UGA";
const std::string OUT = "GCG";
const std::string STOP = "CCC";
const std::string DEBUG = "CAC";

std::string input_cmd() {
	std::string res;
	res += INC;

	res += BEGIN;

	res += next;
	res += IN;
	res += INC;

	res += END;
	return res;
}

std::string solve5() {
	std::string res;
	const int N = 20;
	for(int i = 0;i < N;++i) {
		res += next;
	}

	res += INC;

	for(int i = 0;i < 5;++i) {
		res += next;
	}

	res += INC;

	for(int i = 0;i < 5 + N;++i) {
		res += prev;
	}

	res += prev;

	res += prev;
	res += BEGIN; {
		res += DEC;
	} res += END;
	res += next;

	res += DEC;

	res += BEGIN; {

		res += BEGIN; {
			res += next;
		} res += END;

		res += INC;

		res += BEGIN; {
			res += prev;
		} res += END;

		res += next;
		res += DEC;

	} res += END;

	res += next;

	res += BEGIN; {
		res += next;
	} res += END;

	for(int i = 0;i < N;++i) {
		res += next;
	}

	res += OUT;

	return res;
}

std::string solve4() {
	std::string res;
	const int N = 40;
	for(int i = 0;i < N;++i) {
		res += next;
	}


	for(int i = 0;i < N;++i) {
		if(i % 4 == 0) res += INC;
		res += next;
	}

	for(int i = 0;i < N * 2;++i) {
		res += prev;
	}


	res += prev;
	res += prev;
	res += prev;

	res += BEGIN; {
		res += DEC;
	} res += END;
	// res += DEBUG;

	for(int id : {2, 1}) {
		res += next;

		res += DEC;

		res += BEGIN; {

			for(int inc = 0;inc < id;++inc) {
				res += BEGIN; {
					res += next;
				} res += END;

				res += INC;
			}

			res += BEGIN; {
				res += prev;
			} res += END;

			res += next;
			res += DEC;

		} res += END;

	}
	res += next;

	res += BEGIN; {
		res += next;
	} res += END;

	for(int i = 0;i < N;++i) {
		res += next;
	}

	res += OUT;

	return res;
}

int main() {
	std::ios::sync_with_stdio(false), cin.tie(0);
	int k;
	cin >> k;
	if(k == 5) {
		cout << input_cmd() + solve5() + STOP << '\n';
		return 0;
	}
	if(k == 4) {
		cout << input_cmd() + solve4() + STOP << '\n';
		return 0;
	}
	if(k == 1) {
		cout << "UCCAGGUACUGUUGCGCGCCC" << '\n';
		return 0;
	}
	if(k == 2) {
		puts("UGCAGGUACACGAGGUACUGUUGAAGGUACACGUGCUGAUGUUCCUGCUGUACGUGCAGGUACUGAUGCACGAGGUACUGAUACACGAGGUACUGAUGCACGAGGUACUGAUACACGAGGUACUGAUGCACGAGGUACUGAUACACGAGGUACUGAUGCACGAGGUACUGAUACACGAGGUACUGAUGCACGAGGUACUGAUACACGUGUUGUUGUUGUUGUUGUUGUUGUUGUUGUUGAGCGCCC");
		return 0;
	}
	if(k == 3) {
		puts(
				"UGCAGGACGACGUCCAGGUACACGUGCACGUG"
				"CUGAUGAUGUACGACGACGUGCUGAUGCAGGU"
				"ACACGAGGUACUGUUGAUGUACGAGGUGAUGA"
				"UGAUGCUGAAGGUACACGAGGUACUGUUGAUG"
				"UACGGCGCCCUGUUGAUGAAGGUACUGAUGCA"
				"CGAGGUACUGAUGCACGAGGUACUGAUACUAC"
				"ACGAGGUACUGAUGCACGAGGUACUGAUGCAC"
				"GAGGUACUGAUACUACACGAGGUACUGAUGCA"
				"CGAGGUACUGAUGCACGAGGUACUGAUACUAC"
				"ACGUGUUGUUGUUGUUGUUGUUGUUGUUGUUG"
				"AAGGUACUGAUGCACGUGUUGAAGGUACACGU"
				"GCUGAAGGUACACGUGCUGAAGGUACACGUAC"
				"UACUGAAGGUACACGUGCUGAUGUUGUUGUUG"
				"UACGAGGUACUGAUGCACGUGUUGAUGAUGU");
		return 0;
	}
	if(k == 6) {
		puts(
"UGCAGGACGACGUCCAGGUACACGUGCACGUG"
"CUGAUGAUGUACGACGACGUGCUGAUGCAGGU"
"ACACGAGGUACUGUUGAUGUACGAGGUGAUGA"
"UGAUGAAGGAGGUACUGUGCGCCCUGUACGAC"
"GACGACGACGACGUGCAGGUACUGAUGCACGA"
"GGUACUGAUACACGAGGUACUGAUGCACGAGG"
"UACUGAUACACGAGGUACUGAUGCACGAGGUA"
"CUGAUACACGAGGUACUGAUGCACGAGGUACU"
"GAUACACGAGGUACUGAUGCACGAGGUACUGA"
"UACACGUGUUGUUGUUGUUGUUGUUGUUGUUG"
"UUGUUGAGCGCCCUGUUGAACGACGAGGUACU"
"GUACGAGGUACUGUUGAUGAUGAUGAAGGUAC"
"ACGACGACGUGCACGUGCUGAUGAUGAUGAUG"
"UACGACGACGAGGUACUGAUGAUGAUGCACGA"
"CGACGUGUUGAUGAUGAAGGUACUGAUGCACG"
"AGGUACUGAUGCACGAGGUACUGAUACUACAC"
"GAGGUACUGAUGCACGAGGUACUGAUGCACGA"
"GGUACUGAUACUACACGAGGUACUGAUGCACG"
"AGGUACUGAUGCACGAGGUACUGAUACUACAC"
"GUGUUGUUGUUGUUGUUGUUGUUGUUGUUGAA"
"GGUACUGAUGCACGUGUUGAAGGUACACGUGC"
"UGAAGGUACACGUGCUGAAGGUACACGUACUA"
"CUGAAGGUACACGUGCUGAUGUUGUUGUUGUA"
"CGAGGUACUGAUGCACGUGUUGAUGAUGU");
		return 0;
	}
}