GranCount = 0
function onGrab()
    GranCount = GranCount + 1
    print("Grab : "..GranCount)
    
    --Determine whether the number of times grabbed is a multiple of 3
    local num = GranCount % 3
    if num == 0 then
        print("Multiple of 3")
    end
end

function  onUngrab()
    --Accessible
    print(GranCount)
    
    --Inaccessible
    print(num)
end