C11111211113313112113313331333133313331333132212111133132313331323133311211331   >>    C1111121111331311211331333133313331333133313221211113313231333132313331121133   <<    C11111211113313112113313331333133313331333132212111133132313331323133311211333   >>      C11111211113313112113313331333133313331333132212111133132313331323133311211332   >>