C11111211113313112113313331333132313331322113121111331323232212111   >>    C1111121111331311211331333133313231333132211312111133132323221211   <<    C11111211113313112113313331333132313331322113121111331323232212113   >>      C11111211113313112113313331333132313331322113121111331323232212112   >>