C1111233131211111211113313331323133313231323223313331323133313321211231   >>    C111123313121111121111331333132313331323132322331333132313331332121123   <<    C1111233131211111211113313331323133313231323223313331323133313321211233   >>      C1111233131211111211113313331323133313231323223313331323133313321211232   >>