public class Pair {
	private char c;
	private int i;	
	public Pair(char theC, int theI) {
		if (theI < 0) {
			throw new RuntimeException("A Pair can't contain a negative integer!");
		}
		c = theC;
		i = theI;
	}
	public char getChar() {return c;}
	public int getInt() {return i;}
	public boolean equals(Object o) {
		try {
			Pair p = (Pair)o;
			return (p.getChar()==c && p.getInt()==i);
		} catch (ClassCastException e) {
			return false;
		}
		
	}
	public String toString() {
		return "["+c+","+i+"]";
	}
}