C1111233131211111211113313231333133313331323221211111333132313221121131   >>    C111123313121111121111331323133313331333132322121111133313231322112113   <<    C1111233131211111211113313231333133313331323221211111333132313221121133   >>      C1111233131211111211113313231333133313331323221211111333132313221121132   >>