class ALU {

	public String logRightShift (String operand, int n) {
		StringBuilder builder = new StringBuilder();
		for(int i=0;i<n;i++){
			builder.append('0');
		}
		for(int i=0;i<operand.length()-n;i++){
			builder.append(operand.charAt(i));
		}
		builder.setLength(operand.length());
		return builder.toString();
	}

}