ICPC 2021 vòng Quốc gia - L: Lucky Pair

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Points: 1.10
Time limit: 2.0s
Memory limit: 512M
Input: stdin
Output: stdout

Problem source:
ICPC 2021 vòng Quốc gia
Problem type
Allowed languages
C, C++, Go, Java, Kotlin, Pascal, PyPy, Python, Rust, Scratch

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