C1111233131211111211113313331323133313231323223313232233131331231   >>    C111123313121111121111331333132313331323132322331323223313133123   <<    C1111233131211111211113313331323133313231323223313232233131331233   >>      C1111233131211111211113313331323133313231323223313232233131331232   >>