C11111211113313112113313331333132313331322113121111331323221211231   >>    C1111121111331311211331333133313231333132211312111133132322121123   <<    C11111211113313112113313331333132313331322113121111331323221211233   >>      C11111211113313112113313331333132313331322113121111331323221211232   >>