public class test {
    public static void main(String[] args){
    java.util.Scanner es = new java.util.Scanner(System.in);

    while(es.hasNext()){
        String a = es.next();
        String symbol = es.next();
        String b = es.next();
        java.math.BigInteger A = new java.math.BigInteger(a);          
        java.math.BigInteger B = new java.math.BigInteger(b);
        if(symbol.equals("+"))System.out.println(A.add(B));                 
        if(symbol.equals("-"))System.out.println(A.subtract(B));
        if(symbol.equals("*"))System.out.println(A.multiply(B));
        if(symbol.equals("/"))System.out.println(A.divide(B));}
}}