class RAdder:
    def __radd__(self, o):
        print("__radd__ called",o)
        return f'{o} + RAdder()'

    def __rmul__(self, o):
        print("__rmul__ called", o)
        return f'{o} * RAdder()'

    def __rtruediv__(self, o):
        print("__rtruediv__ called", o)
        return f'{o} / RAdder()'

    def __rpow__(self, o):
        print("__rpow__ called", o)
        return f'{o} ** RAdder()'

    def __rrshift__(self, o):
        print("__rrshift__ called", o)
        return f'{o} >> RAdder()'

    def __rlshift__(self, o):
        print("__rlshift__ called", o)
        return f'{o} << RAdder()'

    def __ror__(self, o):
        print("__ror__ called", o)
        return f'{o} | RAdder()'

    def __rand__(self, o):
        print("__rand__ called", o)
        return f'{o} & RAdder()'

    def __rxor__(self, o):
        print("__rxor__ called", o)
        return f'{o} ^ RAdder()'

    def __rmod__(self, o):
        print("__rmod__ called", o)
        return f'{o} % RAdder()'

print(42 + RAdder())
print(42 * RAdder())
print(42 / RAdder())
print(42 ** RAdder())
print(42 >> RAdder())
print(42 << RAdder())
print(42 | RAdder())
print(42 & RAdder())
print(42 ^ RAdder())
print(42 % RAdder())