I12313331323331323131333132213231323133313231311233131323232221   >>    I1231333132333132313133313221323132313331323131123313132323222   <<    I12313331323331323131333132213231323133313231311233131323232223   >>      I12313331323331323131333132213231323133313231311233131323232222   >>