C1111233131211111211113313331323133313331331121133132313221323221   >>    C111123313121111121111331333132313331333133112113313231322132322   <<    C1111233131211111211113313331323133313331331121133132313221323223   >>      C1111233131211111211113313331323133313331331121133132313221323222   >>