C1111233131211111211113313331333133313232321333133313331333131121323222321   >>    C111123313121111121111331333133313331323232133313331333133313112132322232   <<    C1111233131211111211113313331333133313232321333133313331333131121323222323   >>      C1111233131211111211113313331333133313232321333133313331333131121323222322   >>