742DOW7EY2WD5BZC2CEBAMLIVAQLLCYWWNLSVSWVWTLIZJQ4HFKAC
while (!std.mem.eql(u8, &ch, &.{'q'})) {
_ = try stdin.read(&ch);
while (!std.mem.eql(u8, &ch, &.{'q'})) : (_ = try stdin.read(&ch)) {
if (std.ascii.isCntrl(ch[0])) {
std.log.debug("{d}", .{ch});
} else {
std.log.debug("{d} {c}", .{ ch, ch });
}