H3313331313213231323131323132322331323223313311213231313231231231   >>    H331333131321323132313132313232233132322331331121323131323123123   <<    H3313331313213231323131323132322331323223313311213231313231231233   >>      H3313331313213231323131323132322331323223313311213231313231231232   >>