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def send(msg):
    length = len(msg)
    
    # Splitting the message into two halves
    x = msg[:length // 2]
    y = msg[length // 2:]
    
    # Performing binary addition
    convert = add_binary(x, y)
    
    # If there's a carry, we need to handle it separately
    if len(convert) > len(x):
        convert = convert[1:]
        convert = add_binary(convert, "1")
    
    # Performing 1's complement
    onecom = ''.join(['1' if ch == '0' else '0' for ch in convert])
    
    # Appending the 1's complement to the original message
    result = msg + onecom
    print("Output:", result)

def add_binary(x, y):
    max_len = max(len(x), len(y))
    
    # Padding the shorter string with leading zeros
    x = x.zfill(max_len)
    y = y.zfill(max_len)
    
    result = []
    carry = 0
    
    # Performing binary addition
    for i in range(max_len - 1, -1, -1):
        bit_sum = carry + int(x[i]) + int(y[i])
        
        result.append(str(bit_sum % 2))
        carry = bit_sum // 2
    
    if carry:
        result.append('1')
    
    result.reverse()
    return ''.join(result)

if __name__ == "__main__":
    msg = input("Enter the message: ")
    send(msg)