def METHOD_NAME(seqs: dict):
    seqs_keys={}
    for seq in seqs:
        seqs_keys[seq] = {}
        for ch in range(0x20, 0x7E+1):
            xored = bytes([b^ch for b in seq])
            if not is_all_printable(xored):
                continue
            count = countchar(xored)
            seqs_keys[seq][ch] = count
    return seqs_keys