C1111233133313231133133313331323133313113313121111331311221123221232131   >>    C111123313331323113313331333132313331311331312111133131122112322123213   <<    C1111233133313231133133313331323133313113313121111331311221123221232133   >>      C1111233133313231133133313331323133313113313121111331311221123221232132   >>