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E869120/yukicoder_score9_sample.py Secret

Created February 19, 2024 18:58
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yukicoder_score9_sample.py
# 入力
N = int(input())
A = [0] * N
B = [0] * N
for i in range(N):
A[i], B[i] = map(int, input().split())
# 出力
print(N - 1)
for i in range(2, N + 1):
print("1 " + str(i))
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