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import java.math.BigInteger;

public class BinaryRev {

static class MyInt {

public int v;

public MyInt(int v) { this.v = v; }

public MyInt multiply(int a) { return new MyInt(v*a); }

public MyInt multiplyRev(int a) { return multiply(a); }

public boolean equals(Object o) {

return (o instanceof MyInt) && ((MyInt)o).v == v;

}

}

public static boolean test() {

MyInt a = new MyInt(1);

return (a*2).equals(2*a);

}

}