I331133132333132233132333131121323132313231333132233132322221231   >>    I33113313233313223313233313112132313231323133313223313232222123   <<    I331133132333132233132333131121323132313231333132233132322221233   >>      I331133132333132233132333131121323132313231333132233132322221232   >>