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Why does this simply problem take 2.2s in java and take only 0.06s in ANSI C ? I don't understand..

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
long a, b;

while (in.hasNextLong()) {
a = in.nextLong();
b = in ...