$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"a"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "A"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"b"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "B"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"c"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "C"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"d"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "D"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"e"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "E"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"f"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "F"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"g"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "G"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"h"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "H"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"i"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "I"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"j"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "J"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"k"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "K"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"l"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "L"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"m"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "M"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"n"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "N"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"o"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "O"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"p"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "P"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"q"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "Q"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"r"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "R"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"s"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "S"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"t"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "T"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"u"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "U"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"v"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "V"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"w"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "W"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"x"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "X"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"y"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "Y"
$execute if data storage minecraft:string storage.item_name[{id:$(index),text:"z"}] run data modify storage minecraft:string storage.item_name[$(index)].text set value "Z"