# 파이썬 배열 선언:
# (개수 지정 x) -> 배열 이름 = []
a = int(input())
b = a // 2
r = a % 2
arr = []
arr.append(r)
while (b != 0):
a = b
b = a // 2
r = a % 2
arr.append(r)
for i in range(len(arr)):
print(arr[-(i + 1)], end='')
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