C1111233131211111211113313331323133313231323223313331323133313321133131332311   >>    C111123313121111121111331333132313331323132322331333132313331332113313133231   <<    C1111233131211111211113313331323133313231323223313331323133313321133131332313   >>      C1111233131211111211113313331323133313231323223313331323133313321133131332312   >>