将位追加到10位整数的开头和结尾

def append_digits_to_integer(num, digit):
    num_str = str(num)
    num_len = len(num_str)
    
    if num_len < 10:
        num_str = digit + num_str + digit
    elif num_len > 10:
        num_str = digit + num_str[1:10] + digit
    
    return int(num_str)

# 示例使用
number = 1234567890
digit_to_append = '5'
result = append_digits_to_integer(number, digit_to_append)
print(result)