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Steps

›ฌธณดธฐ
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ธธฐ„:A(A,B,C), „ณตฅ :†’Œ(‚ฎŒ,ณดํ†ต,†’Œ),  ˆฒจ:2(1~4)

About Steps

ˆ˜ง„  œ„—„œ  •ˆ˜ x—„œ  •ˆ˜ yกœ ด™ํ•˜Š”  •„ ƒฐํ•ดณดž. ฐ ‹จ„˜ ธธดŠ” Œด •„‹ˆ–ด• ํ•˜ฉฐ ด „ ‹จ„˜ ธธดณด‹ค 1ด ž‘‚˜, ฐ™‚˜, 1ด ปค• ํ•œ‹ค.

x—„œ yกœ €Š” ฐ ํ•„š”ํ•œ ตœ†Œ ‹จ„˜ ˆ˜Š” –งˆธ€? ฒซฒˆงธ™€ งˆ€ง‰ ‹จ„˜ ธธดŠ” ชจ‘ 1ด–ด• ํ•œ‹ค.

Input

ฒซฒˆงธ „—Š” ํ…ŒŠคํŠธ €ดŠค˜ ฐœˆ˜ธ nด ž… ฅœ‹ค. ํ•œ „— ํ•˜‚˜”ฉ˜ ํ…ŒŠคํŠธ €ดŠค€ ž… ฅ˜ฉฐ, ฐ „งˆ‹ค ‘ ฐœ˜  •ˆ˜ x, y€ ž… ฅœ‹ค. 0 โ‰ค x โ‰ค y < 2<sup>31</sup> ด‹ค.

Output

ฐ ํ…ŒŠคํŠธ €ดŠค— Œ€ํ•ด x —„œ yกœ ด™ํ•  ˆ˜ žˆŠ” ตœ†Œ ‹จ„ ˆ˜ ํ•œ „— ํ•˜‚˜”ฉ ถœ ฅํ•œ‹ค.

Sample Input

{{| 3
45 48
45 49
45 50 |}}

Sample Output

{{| 3
3
4 |}}

ํ’€ด

ž‘„ž ‚ฌšฉ–ธ–ด ฐœฐœ‹œ„ ฝ”“œ
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