C1111233133313231133133313331333131211111311211331333132321133231   >>    C111123313331323113313331333133313121111131121133133313232113323   <<    C1111233133313231133133313331333131211111311211331333132321133233   >>      C1111233133313231133133313331333131211111311211331333132321133232   >>