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def int_to_reverse_binary(integer_value):
    x = integer_value
    binary = ''
    while x > 0:
        binary += str(x % 2)
        x //= 2
    return binary

def string_reverse(input_string):
    normal = ""
    
    for i in range(len(input_string)):
        normal = input_string[i] + normal
    
    return normal
    
        

if __name__ == '__main__':
    # Type your code here. 
    # Your code must call int_to_reverse_binary() to get 
    # the binary string of an integer in a reverse order.
    # Then call string_reverse() to reverse the string
    # returned from int_to_reverse_binary().
    
    number = int(input())
    print(string_reverse(int_to_reverse_binary(number)))