# typing game challenges My script. #docs **Challenge 0** This [guided tutorial](/lessons/typing-game/tutorial) will teach you how to use the method concat to connect to pieces of text together. ``` alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" index = 0 name = "" input.onButtonPressed(Button.A, () => { led.showString(alphabet.substr(index, 1), 0) index = index + 1 }) if (index > 25) { index = 0 } input.onButtonPressed(Button.B, () => { name = name.concat(alphabet.substr(index - 1, 1)) }) input.onGesture(Gesture.Shake, () => { led.showString(name, 150) }) ``` **Challenge 1** After you have shown the string in the condition `on shake`, make the name variable hold nothing in it again so people can add a new name after they have shaken it. ``` alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" index = 0 name = "" input.onButtonPressed(Button.A, () => { led.showString(alphabet.substr(index, 1), 0) index = index + 1 }) if (index > 25) { index = 0 } input.onButtonPressed(Button.B, () => { name = name.concat(alphabet.substr(index - 1, 1)) }) input.onGesture(Gesture.Shake, () => { led.showString(name, 150) name = "" // *** }) ``` **Challenge 2** After you have cleared the name variable to hold nothing, make `index := 0` so that when button `A` is pressed, the first letter of the alphabet will be displayed. ``` alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" index = 0 name = "" input.onButtonPressed(Button.A, () => { led.showString(alphabet.substr(index, 1), 0) index = index + 1 }) if (index > 25) { index = 0 } input.onButtonPressed(Button.B, () => { name = name.concat(alphabet.substr(index - 1, 1)) }) input.onGesture(Gesture.Shake, () => { led.showString(name, 150) name = "" index = 0 // *** }) ``` **Challenge 3** Give Micro a nickname and display it on the @boardname@!