C11111333133313331211211331333133313331323133313331333132311111211   >>    C1111133313331333121121133133313331333132313331333133313231111121   <<    C11111333133313331211211331333133313331323133313331333132311111213   >>      C11111333133313331211211331333133313331323133313331333132311111212   >>