execute if entity @s[nbt={Inventory:[{Slot:103b,components:{"minecraft:custom_data":{hpdmgup3:tag}}}]}] run effect give @s strength 1 2
#execute if entity @s[nbt={Inventory:[{Slot:102b,components:{"minecraft:custom_data":{20strength:tag}}}]}] 
#execute if entity @s[nbt={Inventory:[{Slot:101b,components:{"minecraft:custom_data":{20strength:tag}}}]}] 
#execute if entity @s[nbt={Inventory:[{Slot:100b,components:{"minecraft:custom_data":{20strength:tag}}}]}] 