{"problem":{"name":"NarrowRectanglesEasy","description":{"content":"AtCoDeer the deer found two rectangles lying on the table, each with height $1$ and width $W$. If we consider the surface of the desk as a two-dimensional plane, the first rectangle covers the vertica","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc056_b"},"statements":[{"statement_type":"Markdown","content":"AtCoDeer the deer found two rectangles lying on the table, each with height $1$ and width $W$. If we consider the surface of the desk as a two-dimensional plane, the first rectangle covers the vertical range of $[0,1]$ and the horizontal range of $[a,a+W]$, and the second rectangle covers the vertical range of $[1,2]$ and the horizontal range of $[b,b+W]$, as shown in the following figure:\n![image](https://atcoder.jp/img/abc056/5c3a0ed9a07aa0992011c11ffbc9441b.png)\nAtCoDeer will move the second rectangle horizontally so that it connects with the first rectangle. Find the minimum distance it needs to be moved.\n\n## Constraints\n\n*   All input values are integers.\n*   $1≤W≤10^5$\n*   $1≤a,b≤10^5$\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$W$ $a$ $b$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc056_b","tags":[],"sample_group":[["3 2 6","1\n\nThis input corresponds to the figure in the statement. In this case, the second rectangle should be moved to the left by a distance of $1$."],["3 1 3","0\n\nThe rectangles are already connected, and thus no move is needed."],["5 10 1","4"]],"created_at":"2026-03-03 11:01:14"}}