if (r.nextInt() % 1 == 0) {
a[r.nextInt(a.length)] = (byte)r.nextInt(128);
} else {
b[r.nextInt(a.length)] = (byte)r.nextInt(128);
}
if (c.compare(a, b) != d.compare(a, b)) {
StringBuilder sb = new StringBuilder();
for (byte bi : a) {
sb.append(bi).append(',');
}
sb.append('\n');