B3313221211233132322331321123233313231323131133133313232311231231   >>    B331322121123313232233132112323331323132313113313331323231123123   <<    B3313221211233132322331321123233313231323131133133313232311231233   >>      B3313221211233132322331321123233313231323131133133313232311231232   >>