I12313331323331323131333132213231323133313231311233132313221231   >>    I1231333132333132313133313221323132313331323131123313231322123   <<    I12313331323331323131333132213231323133313231311233132313221233   >>      I12313331323331323131333132213231323133313231311233132313221232   >>