C31232233133313221211113313331333132313331323331313331323133323231   >>    C3123223313331322121111331333133313231333132333131333132313332323   <<    C31232233133313221211113313331333132313331323331313331323133323233   >>      C31232233133313221211113313331333132313331323331313331323133323232   >>