I1231333132333132313133313221323132313331323131123313231333132322112121   >>    I123133313233313231313331322132313231333132313112331323133313232211212   <<    I1231333132333132313133313221323132313331323131123313231333132322112123   >>      I1231333132333132313133313221323132313331323131123313231333132322112122   >>