C11111211113313112113313331333132313331322132333133313231231131   >>    C1111121111331311211331333133313231333132213233313331323123113   <<    C11111211113313112113313331333132313331322132333133313231231133   >>      C11111211113313112113313331333132313331322132333133313231231132   >>