C31232233133313221211113313331333131333132313331323131333132221   >>    C3123223313331322121111331333133313133313231333132313133313222   <<    C31232233133313221211113313331333131333132313331323131333132223   >>      C31232233133313221211113313331333131333132313331323131333132222   >>