C1111233131211111211113313331323133313231323223313331322212331323311   >>    C111123313121111121111331333132313331323132322331333132221233132331   <<    C1111233131211111211113313331323133313231323223313331322212331323313   >>      C1111233131211111211113313331323133313231323223313331322212331323312   >>