from "field" import FIELD_SIZE_IN_BITS;
import "utils/pack/bool/unpack";
import "utils/casts/u8_from_bits";
def main(field input) -> u8 {
bool[FIELD_SIZE_IN_BITS] bits = unpack(input);
return u8_from_bits(bits[FIELD_SIZE_IN_BITS-8..]);
}