public class Main {
/*
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*/
public static void changeString(String s2) {
System.out.println("#2: s2 = " + s2);
s2 = s2 + " there";
System.out.println("#3: s2 = " + s2);
}
public static void main(String[] args) {
String s1 = "hi";
System.out.println("#1: s1 = " + s1);
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