local _={}
_[25]={}
_[24]={}
_[23]={}
_[22]={}
_[21]={}
_[20]={}
_[19]={}
_[18]={}
_[17]={}
_[16]={tags=_[25],text="b"}
_[15]={tags=_[24],text="x"}
_[14]={tags=_[23],text="Force no checkpoint:"}
_[13]={tags=_[22],text="b"}
_[12]={tags=_[21],text="a"}
_[11]={tags=_[20],text="From checkpoint:"}
_[10]={tags=_[19],text="b"}
_[9]={tags=_[18],text="a"}
_[8]={tags=_[17],text="Force run from checkpoint:"}
_[7]={_[14],_[15],_[16]}
_[6]={_[11],_[12],_[13]}
_[5]={_[8],_[9],_[10]}
_[4]={"return"}
_[3]={"text",_[7]}
_[2]={"text",_[6]}
_[1]={"text",_[5]}
return {_[1],_[2],_[3],_[4]}
--[[
{ "text", { {
      tags = {},
      text = "Force run from checkpoint:"
    }, {
      tags = {},
      text = "a"
    }, {
      tags = {},
      text = "b"
    } } }
{ "text", { {
      tags = {},
      text = "From checkpoint:"
    }, {
      tags = {},
      text = "a"
    }, {
      tags = {},
      text = "b"
    } } }
{ "text", { {
      tags = {},
      text = "Force no checkpoint:"
    }, {
      tags = {},
      text = "x"
    }, {
      tags = {},
      text = "b"
    } } }
{ "return" }
]]--