C11111211113313112113313331333133313331333132313331333132322331333211   >>    C1111121111331311211331333133313331333133313231333133313232233133321   <<    C11111211113313112113313331333133313331333132313331333132322331333213   >>      C11111211113313112113313331333133313331333132313331333132322331333212   >>