{"problem":{"name":"Bulletin Board","description":{"content":"It has been decided that a programming contest sponsored by company A will be held, so we will post the notice on a bulletin board. The bulletin board is in the form of a grid with $N$ rows and $N$ co","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"aising2019_a"},"statements":[{"statement_type":"Markdown","content":"It has been decided that a programming contest sponsored by company A will be held, so we will post the notice on a bulletin board.\nThe bulletin board is in the form of a grid with $N$ rows and $N$ columns, and the notice will occupy a rectangular region with $H$ rows and $W$ columns.\nHow many ways are there to choose where to put the notice so that it completely covers exactly $HW$ squares?\n\n## Constraints\n\n*   $1 \\leq H, W \\leq N \\leq 100$\n*   All values in input are integers.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$\n$H$\n$W$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"aising2019_a","tags":[],"sample_group":[["3\n2\n3","2\n\nThere are two ways to put the notice, as follows:\n\n###   ...\n###   ###\n...   ###\n\nHere, `#` represents a square covered by the notice, and `.` represents a square not covered."],["100\n1\n1","10000"],["5\n4\n2","8"]],"created_at":"2026-03-03 11:01:14"}}