public class KalkulatorMegaDober{
	public static void main(String banana[]){
		/*for(int i = 0; i < banana.length; i++){
			System.out.println(banana[i]);
		}
		*/
		int op1, op2;
		String operator;
		if(banana.length == 3){
			op1 = Integer.parseInt(banana[0]);
			op2 = Integer.parseInt(banana[2]);
			operator = banana[1];
			if(operator.equals("+")){
				System.out.println(op1 + op2);
			}
			else if(operator.equals("-")){
				System.out.println(op1 - op2);
			}
			else if(operator.equals("*")){
				System.out.println(op1 * op2);
			}
			else if(operator.equals("/")){
				System.out.println(op1 / op2);
			}
			else if(operator.equals("%")){
				System.out.println(op1 % op2);
			}
		}
		else{
			System.out.println("Napaka, rabimo 3 parametre!");
		}
	}
}