C1111233131211111211113313331333132313231323223313331323133313321312321   >>    C111123313121111121111331333133313231323132322331333132313331332131232   <<    C1111233131211111211113313331333132313231323223313331323133313321312323   >>      C1111233131211111211113313331333132313231323223313331323133313321312322   >>