public static final int Char2Int(char c)
	{
		switch (c)
		{
		case '+':
			return 0;
		case '-':
			return 1;
		case '*':
			return 2;
		case '/':
			return 3;
		case '(':
			return 4;
		case ')':
			return 5;
		case 'i':
			return 6;
		case '#':
			return 7;
		default:
			return 0;
		}
	}