class FieldAccessAndMethodCalls {
    public static void main(String[] args) {
        Class1 c1 = new Class1();
        int i = c1.c2.c3.m3(1).m2().m1();
        print(i);
    }
}

class Class1{
    int i1;
    Class2 c2;
    public Class1() {
        this.c2 = new Class2();
    }
    public int m1(){
        return i1;
    }
}

class Class2{
    int i2;
    Class3 c3;
    public Class2(){
        this.c3 = new Class3();
    }
    public Class1 m2(){
        Class1 c1 = new Class1();
        c1.i1 = i2;
        return c1;
    }
}

class Class3{
    int i3;
    public Class2 m3(int i){
        Class2 c2 = new Class2();
        c2.i2 = i;
        return c2;
    }
}