I1231333132333132313133313221323132313331323131123313231312323221211   >>    I123133313233313231313331322132313231333132313112331323131232322121   <<    I1231333132333132313133313221323132313331323131123313231312323221213   >>      I1231333132333132313133313221323132313331323131123313231312323221212   >>