C11111211113313112113313331313331323133313331333132313232233131   >>    C1111121111331311211331333131333132313331333133313231323223313   <<    C11111211113313112113313331313331323133313331333132313232233133   >>      C11111211113313112113313331313331323133313331333132313232233132   >>