Language: Java

public class Main {
	public static void main(String[] args) throws IOException {
		InputReader in = new InputReader(System.in);
		char x = (char)in.read();
		char y = (char)in.read();
		if(x < y) {
			System.out.println("<");
		}
		else if( y < x) System.out.println(">");
		else System.out.println("=");
	}
}
class InputReader {

	private InputStream stream;
	private byte[] buf = new byte[1024];
	private int curChar;
	private int numChars;
	private SpaceCharFilter filter;

	public InputReader(InputStream stream) {
		this.stream = stream;
	}

	public int read() {
		if (numChars == -1)
			throw new InputMismatchException();
		if (curChar >= numChars) {
			curChar = 0;
			try {
				numChars = stream.read(buf);
			} catch (IOException e) {
				throw new InputMismatchException();
			}
			if (numChars <= 0)
				return -1;
		}
		return buf[curChar++];
	}

	public int readInt() {
		int c = read();
		while (isSpaceChar(c))
			c = read();
		int sgn = 1;
		if (c == '-') {
			sgn = -1;
			c = read();
		}
		int res = 0;
		do {
			if (c < '0' || c > '9')
				throw new InputMismatchException();
			res *= 10;
			res += c - '0';
			c = read();
		} while (!isSpaceChar(c));
		return res * sgn;
	}

	public String readString() {
		int c = read();
		while (isSpaceChar(c))
			c = read();
		StringBuilder res = new StringBuilder();
		do {
			res.appendCodePoint(c);
			c = read();
		} while (!isSpaceChar(c));
		return res.toString();
	}

	public long readLong() {
		int c = read();
		while (isSpaceChar(c)) {
			c = read();
		}
		int sgn = 1;
		if (c == '-') {
			sgn = -1;
			c = read();
		}
		long res = 0;
		do {
			if (c < '0' || c > '9') {
				throw new InputMismatchException();
			}
			res *= 10;
			res += c - '0';
			c = read();
		} while (!isSpaceChar(c));
		return res * sgn;
	}
	
	public boolean isSpaceChar(int c) {
		if (filter != null)
			return filter.isSpaceChar(c);
		return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
	}

	public String next() {
		return readString();
	}

	public interface SpaceCharFilter {
		public boolean isSpaceChar(int ch);
	}
}


Compiler output:
Main.java:2: error: cannot find symbol
	public static void main(String[] args) throws IOException {
	                                              ^
  symbol:   class IOException
  location: class Main
Main.java:15: error: cannot find symbol
	private InputStream stream;
	        ^
  symbol:   class InputStream
  location: class InputReader
Main.java:21: error: cannot find symbol
	public InputReader(InputStream stream) {
	                   ^
  symbol:   class InputStream
  location: class InputReader
Main.java:27: error: cannot find symbol
			throw new InputMismatchException();
			          ^
  symbol:   class InputMismatchException
  location: class InputReader
Main.java:32: error: cannot find symbol
			} catch (IOException e) {
			         ^
  symbol:   class IOException
  location: class InputReader
Main.java:33: error: cannot find symbol
				throw new InputMismatchException();
				          ^
  symbol:   class InputMismatchException
  location: class InputReader
Main.java:53: error: cannot find symbol
				throw new InputMismatchException();
				          ^
  symbol:   class InputMismatchException
  location: class InputReader
Main.java:86: error: cannot find symbol
				throw new InputMismatchException();
				          ^
  symbol:   class InputMismatchException
  location: class InputReader
8 errors