import java.util.*;
import java.io.*;

public class Main {

	static void solve (FastScanner in, PrintWriter out, Methods ms) {

		while (in.hasNext() == true) {
//		for (int k=0; k<8; k++) {
			
			String[] s = in.next().split(",");
			
			int[] a = new int[5];
			for (int i=0; i<5; i++) {
				a[i] = Integer.parseInt(s[i]);
			}
			Arrays.sort(a);

			if (isSameNum(a[0], a[1], a[2], a[3]) || isSameNum(a[1], a[2], a[3], a[4])) {
				out.println("four card");
			}
			else if ((isSameNum(a[0], a[1], a[2]) && isSameNum(a[3], a[4]))
					|| (isSameNum(a[0], a[1]) && isSameNum(a[2], a[3], a[4]))) {
				out.println("full house");
			}
			else if (isStraight(a)) {
				out.println("straight");
			}
			else if (isSameNum(a[0], a[1], a[2])
					|| isSameNum(a[1], a[2], a[3])
					|| isSameNum(a[2], a[3], a[4])) {
				out.println("three card");
			}
			else if ((isSameNum(a[0], a[1]) && isSameNum(a[2], a[3]))
					|| (isSameNum(a[1], a[2]) && isSameNum(a[3], a[4]))
					|| (isSameNum(a[0], a[1]) && isSameNum(a[3], a[4]))) {
				out.println("two pair");
			}
			else if (isSameNum(a[0], a[1])
					|| isSameNum(a[1], a[2])
					|| isSameNum(a[2], a[3])
					|| isSameNum(a[3], a[4])
					|| isSameNum(a[0], a[4])) {
				out.println("one pair");
			}
			else out.println("null");

		}

	}

	static boolean isSameNum (int... a) {
		for (int i=0; i<a.length-1; i++) {
			if (a[i] != a[i+1]) return false;
		}
		if (a[0] != a[a.length-1]) return false;
		return true;
	}

	static boolean isStraight (int[] a) {
		if (a[1]==10 && a[2]==11 && a[3]==12 && a[4]==13 && a[0]==1) return true;
		for (int i=0; i<4; i++) {
			if (Math.abs(a[i+1]-a[i]) != 1) {
				return false;
			}
		}
		return true;
	}



	public static void main(String[] args) {
		FastScanner in = new FastScanner(System.in);
		PrintWriter out = new PrintWriter(System.out);
		Methods ms = new Methods();
		solve(in, out, ms);
		in.close();
		out.close();
	}

	static class Methods {

		public void print (Object... ar) {System.out.println(Arrays.deepToString(ar));}

		public int max (int... ar) {Arrays.sort(ar); return ar[ar.length-1];}

		public int min (int... ar) {Arrays.sort(ar); return ar[0];}

		public long gcd (long a, long b) {return b>0?gcd(b,a%b):a;}

		public long lcm (long a, long b) {return a/gcd(a,b)*b;}

		public long factorial (int i) {
			if (i==1) return 1;
			else return i*factorial(i-1);
		}

		public int manhat (int x1, int y1, int x2, int y2) {
			return Math.abs(x1-x2)+Math.abs(y1-y2);
		}

		public double euclid (double x1, double y1, double x2, double y2) {
			return Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
		}

		public boolean isPrime (int n) {
			if (n==2) return true;
			if (n<2 || n%2==0) return false;
			for (int i=3; i<=Math.sqrt(n); i+=2) if(n%i==0) return false;
			return true;
		}

	}

	static class FastScanner {

		private InputStream in;
		private byte[] buffer = new byte[1024];
		private  int length = 0, p = 0;

		public FastScanner (InputStream stream) {
			in = stream;
		}

		public boolean hasNextByte () {
			if (p < length) return true;
			else {
				p = 0;
				try {length = in.read(buffer);}
				catch (Exception e) {e.printStackTrace();}
				if (length <= 0) return false;
			}
			return true;
		}

		public int readByte () {
			if (hasNextByte() == true) return buffer[p++];
			return -1;
		}

		public boolean isPrintable (int n) {return 33<=n&&n<=126;}

		public void skip () {
			while (hasNextByte() && !isPrintable(buffer[p])) p++;
		}

		public boolean hasNext () {skip(); return hasNextByte();}

		public String next () {
			if (!hasNext()) throw new NoSuchElementException();
			StringBuilder sb = new StringBuilder();
			int t = readByte();
			while (isPrintable(t)) {
				sb.appendCodePoint(t);
				t = readByte();
			}
			return sb.toString();
		}

		public String[] nextArray (int n) {
			String[] ar = new String[n];
			for (int i=0; i<n; i++) ar[i] = next();
			return ar;
		}

		public int nextInt () {return Math.toIntExact(nextLong());}

		public int[] nextIntArray (int n) {
			int[] ar = new int[n];
			for (int i=0; i<n; i++) ar[i] = nextInt();
			return ar;
		}

		public long nextLong () {
			if (!hasNext()) throw new NoSuchElementException();
			boolean minus = false;
			int temp = readByte();
			if (temp == '-') {
				minus = true;
				temp = readByte();
			}
			if (temp<'0' || '9'<temp) throw new NumberFormatException();
			long n = 0;
			while (isPrintable(temp)) {
				if ('0'<=temp && temp<='9') {
					n *= 10;
					n += temp - '0';
				}
				else throw new NumberFormatException();
				temp = readByte();
			}
			return minus? -n : n;
		}

		public long[] nextLongArray (int n) {
			long[] ar = new long[n];
			for (int i=0; i<n; i++) ar[i] = nextLong();
			return ar;
		}

		public double nextDouble () {
			return Double.parseDouble(next());
		}

		public double[] nextDoubleArray (int n) {
			double[] ar = new double[n];
			for (int i=0; i<n; i++) ar[i] = nextDouble();
			return ar;
		}

		public void close () {
			try {in.close();}
			catch(Exception e){}
		}

	}

}


Measured memory_bytes: 24392