10 3 5
1 2
2 3
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2 3 6
1 6
2 1 6
2 8 7
1 10
 10 2 6
1 2
1 3
2 1 8
2 9 2
1 2
1 9
2 3 5
1 8
 10 5 2
1 2
1 3
1 4
2 5
1 6
1 5
1 8
 10 6 64
1 2
2 3
2 4
4 5
3 6
3 7
2 4 4
1 4
1 6
1 5
1 8
2 1 10
2 6 8
2 4 2
1 10
1 6
2 4 3
2 5 9
1 4
2 8 7
2 3 6
2 8 5
2 7 3
2 10 7
2 9 3
1 8
2 7 5
2 6 10
2 5 9
1 10
2 8 9
1 2
2 9 10
2 5 1
2 10 1
2 3 9
2 10 2
2 5 4
1 1
1 5
2 7 5
1 7
2 9 5
2 8 2
1 3
1 10
2 8 8
2 8 2
2 9 8
2 7 10
1 1
1 6
2 1 6
1 2
1 10
2 6 4
1 3
2 6 6
2 10 3
2 3 5
1 2
2 1 7
2 4 4
1 9
1 10
1 5
2 8 3
1 6
1 4
1 8
 10 9 16
1 2
1 3
2 4
2 5
4 6
4 7
6 8
4 9
5 10
2 1 5
2 4 4
1 7
1 8
1 6
1 4
1 10
1 4
2 1 5
2 8 10
2 5 5
2 7 3
2 8 7
2 7 7
2 7 3
2 4 6
 10 5 42
1 2
1 3
2 4
4 5
1 6
1 4
2 9 2
2 10 5
1 4
2 2 7
2 10 5
2 6 10
1 4
1 4
1 2
2 7 8
1 7
2 4 4
2 10 6
2 9 3
1 9
1 2
2 8 1
1 8
2 3 5
1 8
2 5 5
2 2 7
2 8 5
1 9
1 1
2 4 4
2 6 6
2 1 7
1 6
2 8 3
2 7 4
1 8
2 3 6
2 8 6
2 3 6
2 9 3
1 3
1 9
2 3 7
1 2
1 7
 100 22 4
100 24
100 27
100 4
100 60
24 63
63 17
27 89
17 71
63 77
77 43
63 9
100 65
24 14
27 15
60 10
71 16
100 67
10 1
1 40
10 83
43 66
67 18
1 6
1 27
1 6
1 49
 10 7 48
1 2
2 3
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3 5
4 6
6 7
7 8
2 7 4
1 2
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1 2
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2 10 3
2 1 3
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1 8
2 2 7
2 2 9
1 10
2 6 7
2 3 6
2 8 1
2 2 6
1 7
2 1 2
1 3
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2 5 6
2 7 1
2 4 2
2 1 9
2 6 9
2 6 1
1 1
1 2
1 1
2 2 3
1 4
2 2 2
2 4 7
2 5 5
2 5 7
1 5
2 8 7
1 9
2 10 9
1 9
2 6 6
2 1 1
2 3 3
1 9
2 7 4
 10 4 4
1 2
1 3
3 4
2 5
1 5
1 2
1 3
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 10 7 7
1 2
1 3
2 4
2 5
4 6
5 7
3 8
2 4 7
2 6 4
1 2
2 10 3
1 9
1 8
1 8
 10 5 10
1 2
1 3
3 4
2 5
1 6
2 7 3
1 5
2 3 4
1 3
1 8
1 8
1 8
1 9
2 5 3
2 6 5
 10 1 14
1 2
1 1
1 8
1 9
2 2 5
1 9
1 6
2 10 9
2 4 8
1 4
2 1 10
2 2 4
1 10
2 8 10
2 7 4
 100 10 30
58 81
58 7
58 74
74 97
81 56
81 15
15 49
97 45
97 47
58 34
2 52 44
2 55 79
2 52 5
1 48
2 60 35
2 37 82
2 77 52
2 9 23
2 25 61
2 63 34
1 81
2 47 20
1 79
2 34 19
1 70
1 36
2 27 85
2 52 89
1 25
2 46 46
1 52
1 33
1 70
2 29 56
2 3 73
2 37 46
2 29 83
1 1
1 4
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 10 8 43
1 2
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3 7
7 8
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2 1 6
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2 6 9
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2 3 3
1 1
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2 6 2
2 2 5
2 3 9
1 3
2 8 7
1 9
1 3
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1 7
1 10
2 10 3
2 10 2
2 5 7
2 10 5
1 10
1 7
1 10
1 2
1 6
2 3 10
1 3
1 5
1 6
1 5
1 8
1 7
2 5 8
 10 3 11
1 2
1 3
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1 2
2 1 1
2 7 9
2 3 2
2 2 7
2 2 5
1 6
2 7 4
1 7
2 9 1
2 9 2
 10 5 6
1 2
2 3
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4 5
1 6
2 3 1
2 6 4
2 1 1
1 5
1 6
1 4
 10 6 7
1 2
2 3
1 4
3 5
1 6
5 7
1 1
2 8 10
1 10
2 9 5
1 7
1 4
2 1 9
 100 16 46
36 42
36 50
42 54
42 74
50 58
42 16
50 81
50 96
42 62
54 2
74 75
74 22
2 48
50 95
74 66
75 5
1 62
1 56
2 6 68
1 47
1 43
1 38
1 75
2 22 82
2 56 77
1 71
2 52 15
2 9 1
2 12 59
1 24
2 41 94
2 18 58
2 22 67
1 45
2 68 70
1 81
1 48
1 71
2 76 28
2 31 73
2 58 80
2 100 57
2 88 79
1 30
2 96 23
2 92 44
1 12
1 66
1 24
2 71 68
2 4 4
2 84 43
2 80 15
2 54 13
1 51
2 99 17
1 63
2 12 41
2 1 2
2 62 96
2 79 9
2 59 79
 10 1 9
1 2
1 5
2 7 4
1 4
1 7
2 2 5
2 6 3
1 3
1 4
1 2
 10 5 77
1 2
1 3
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5 6
1 2
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2 5 1
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2 2 4
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2 3 8
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1 10
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1 2
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1 2
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1 2
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2 7 7
1 10
2 4 2
1 9
2 6 6
1 3
1 2
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1 1
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1 8
1 9
2 1 4
2 1 1
2 3 3
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1 8
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1 4
2 4 4
1 6
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1 4
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1 10
1 4
1 4
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1 2
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2 10 8
1 2
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2 8 5
 10 4 46
1 2
2 3
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1 5
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2 10 8
1 1
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1 1
2 6 6
1 8
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1 2
1 5
1 2
2 6 5
1 2
1 6
2 5 3
1 5
2 10 5
1 5
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2 2 3
2 7 9
2 8 9
1 8
1 3
2 7 1
2 2 2
1 2
1 1
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2 8 7
1 3
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1 3
2 3 1
2 8 8
1 10
1 9
1 10
2 7 10
2 8 9
1 4
2 8 9
1 5
2 6 9
 10 7 26
1 2
2 3
3 4
3 5
4 6
2 7
5 8
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1 3
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2 9 4
2 5 1
1 5
1 8
1 10
1 3
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1 6
2 1 9
2 5 7
2 1 4
1 6
2 6 7
1 3
1 1
1 3
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2 2 5
1 1
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2 5 1
2 1 8
 10 6 21
1 2
2 3
2 4
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4 6
2 7
2 4 1
1 1
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1 5
1 3
1 3
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1 5
1 7
1 4
2 6 3
2 7 4
1 10
2 2 5
1 1
1 5
1 8
2 5 7
1 3
2 2 9
1 7

3
0
 2
2
2
 3
0
 4
4
4
0
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
 5
5
5
5
5
5
 4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
 0
9
0
0
 6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
 4
4
4
4
 5
0
5
5
 4
4
0
0
0
0
 1
0
0
0
0
1
4
 0
6
1
0
0
1
2
0
0
0
0
6
 5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
 3
0
4
 4
4
4
 5
1
5
5
 6
0
0
0
0
6
0
0
0
6
6
0
0
1
6
0
0
0
 0
1
1
1
1
2
 4
4
4
1
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
 3
0
3
3
3
2
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
 4
4
4
4
4
4
4
4
4
4
4
4
4
 3
3
3
3
0
3
3
3
0
3
3
0
3
3

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

public class Main {
	FastReader scn;
	PrintWriter out;
	String INPUT = "";

	void solve() {
		out.println(3);
	}

	void run() throws Exception {
		long time = System.currentTimeMillis();
		boolean oj = System.getProperty("ONLINE_JUDGE") != null;
		out = new PrintWriter(System.out);
		scn = new FastReader(oj);
		solve();
		out.flush();
		if (!oj) {
			System.out.println(Arrays.deepToString(new Object[] { System.currentTimeMillis() - time + " ms" }));
		}
	}

	public static void main(String[] args) throws Exception {
		new Main().run();
	}

	class FastReader {
		InputStream is;

		public FastReader(boolean onlineJudge) {
			is = onlineJudge ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		}

		byte[] inbuf = new byte[1024];
		public int lenbuf = 0, ptrbuf = 0;

		int readByte() {
			if (lenbuf == -1)
				throw new InputMismatchException();
			if (ptrbuf >= lenbuf) {
				ptrbuf = 0;
				try {
					lenbuf = is.read(inbuf);
				} catch (IOException e) {
					throw new InputMismatchException();
				}
				if (lenbuf <= 0)
					return -1;
			}
			return inbuf[ptrbuf++];
		}

		boolean isSpaceChar(int c) {
			return !(c >= 33 && c <= 126);
		}

		int skip() {
			int b;
			while ((b = readByte()) != -1 && isSpaceChar(b))
				;
			return b;
		}

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

		char nextChar() {
			return (char) skip();
		}

		String next() {
			int b = skip();
			StringBuilder sb = new StringBuilder();
			while (!(isSpaceChar(b))) { // when nextLine, (isSpaceChar(b) && b != ' ')
				sb.appendCodePoint(b);
				b = readByte();
			}
			return sb.toString();
		}

		String nextLine() {
			int b = skip();
			StringBuilder sb = new StringBuilder();
			while ((!isSpaceChar(b) || b == ' ')) { // when nextLine, (isSpaceChar(b) && b != ' ')
				sb.appendCodePoint(b);
				b = readByte();
			}
			return sb.toString();
		}

		char[] next(int n) {
			char[] buf = new char[n];
			int b = skip(), p = 0;
			while (p < n && !(isSpaceChar(b))) {
				buf[p++] = (char) b;
				b = readByte();
			}
			return n == p ? buf : Arrays.copyOf(buf, p);
		}

		int nextInt() {
			int num = 0, b;
			boolean minus = false;
			while ((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'))
				;
			if (b == '-') {
				minus = true;
				b = readByte();
			}

			while (true) {
				if (b >= '0' && b <= '9') {
					num = num * 10 + (b - '0');
				} else {
					return minus ? -num : num;
				}
				b = readByte();
			}
		}

		long nextLong() {
			long num = 0;
			int b;
			boolean minus = false;
			while ((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'))
				;
			if (b == '-') {
				minus = true;
				b = readByte();
			}

			while (true) {
				if (b >= '0' && b <= '9') {
					num = num * 10 + (b - '0');
				} else {
					return minus ? -num : num;
				}
				b = readByte();
			}
		}

		char[][] nextMatrix(int n, int m) {
			char[][] map = new char[n][];
			for (int i = 0; i < n; i++)
				map[i] = next(m);
			return map;
		}

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

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

		int[][] next2DInt(int n, int m) {
			int[][] arr = new int[n][];
			for (int i = 0; i < n; i++) {
				arr[i] = nextIntArray(m);
			}
			return arr;
		}

		long[][] next2DLong(int n, int m) {
			long[][] arr = new long[n][];
			for (int i = 0; i < n; i++) {
				arr[i] = nextLongArray(m);
			}
			return arr;
		}

		int[] shuffle(int[] arr) {
			Random r = new Random();
			for (int i = 1, j; i < arr.length; i++) {
				j = r.nextInt(i);
				arr[i] = arr[i] ^ arr[j];
				arr[j] = arr[i] ^ arr[j];
				arr[i] = arr[i] ^ arr[j];
			}
			return arr;
		}
	}
}