C1111233131211111211113313331333132313231323223313331323133313321133132313311   >>    C111123313121111121111331333133313231323132322331333132313331332113313231331   <<    C1111233131211111211113313331333132313231323223313331323133313321133132313313   >>      C1111233131211111211113313331333132313231323223313331323133313321133132313312   >>