Seeded Randomizer
Used an online java compiler to bruteforce the seed with the following main function.
public static void main(String[] args) {
for (int s = 1; s < 1000; s++) {
Random rand = new Random(s);
char[] flag = new char[33];
int[] c = {13, 35, 15, -18, 88, 68, -72, -51, 73, -10, 63,
1, 35, -47, 6, -18, 10, 20, -31, 100, -48, 33, -12,
13, -24, 11, 20, -16, -10, -76, -63, -18, 118};
for (int i = 0; i < flag.length; i++) {
int r = rand.nextInt(128);
int n = r + c[i];
flag[i] = (char)n;
}
if (flag[0] == 'f' && flag[1] == 'l' && flag[32] == '}')
display(flag);
}
}
After a while the flog shown up flag{s33d3d_r4nd0m1z3rs_4r3_c00l}.