Rating:

# Toast clicker 1 (79p, 23 solved)

In `MainActivity.java` we can see:

```java
int[] input = {67, 83, 68, 120, 62, 109, 95, 90, 92, 112, 85, 73, 99, 82, 53, 99, 101, 92, 80, 89, 81, 104};

//

public String printfirstFlag() {
String output = BuildConfig.FLAVOR;
int i = 0;
while (true) {
int[] iArr = this.input;
if (i >= iArr.length) {
return output;
}
int t = iArr[i] + i;
StringBuilder sb = new StringBuilder();
sb.append(output);
sb.append(Character.toString((char) t));
output = sb.toString();
i++;
}
}
```

We only need to run this code, or it's python equivalent:

```python
"".join([chr(x+i) for i,x in enumerate([67, 83, 68, 120, 62, 109, 95, 90, 92, 112, 85, 73, 99, 82, 53, 99, 101, 92, 80, 89, 81, 104])])
```
And we get `CTF{Bready_To_Crumble}`

Original writeup (https://github.com/TFNS/writeups/blob/master/2020-02-23-BSidesSF/toast/README.md).