I1231333132333132313133313221323132313331323131123313232213231211   >>    I123133313233313231313331322132313231333132313112331323221323121   <<    I1231333132333132313133313221323132313331323131123313232213231213   >>      I1231333132333132313133313221323132313331323131123313232213231212   >>