I123133313233313231313331322132313231333132313112331323331323112121121   >>    I12313331323331323131333132213231323133313231311233132333132311212112   <<    I123133313233313231313331322132313231333132313112331323331323112121123   >>      I123133313233313231313331322132313231333132313112331323331323112121122   >>