This level is the first one where you get to design your own circuit. The task here is to create a circuit that outputs the opposite of the input.
| Input | Output |
|---|---|
 0 |
 1
|
1 |
0
|
To solve this level place one NAND gate and connect both of its inputs to the input pin on the left, then connect the output of the gate to the output pin on the right.