I1231333132333132313133313221323132313331323131123313233313232313232211   >>    I123133313233313231313331322132313231333132313112331323331323231323221   <<    I1231333132333132313133313221323132313331323131123313233313232313232213   >>      I1231333132333132313133313221323132313331323131123313233313232313232212   >>