{"problem":{"name":"AtCoder Condominium","description":{"content":"A condominium _AtCoder_ has $N$ floors, called the $1$\\-st floor through the $N$\\-th floor. Each floor has $K$ rooms, called the $1$\\-st room through the $K$\\-th room. Here, both $N$ and $K$ are one-d","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc203_b"},"statements":[{"statement_type":"Markdown","content":"A condominium _AtCoder_ has $N$ floors, called the $1$\\-st floor through the $N$\\-th floor. Each floor has $K$ rooms, called the $1$\\-st room through the $K$\\-th room.\nHere, both $N$ and $K$ are one-digit integers, and the $j$\\-th room on the $i$\\-th floor has the room number `i0j`. For example, the $2$\\-nd room on the $1$\\-st floor has the room number $102$.\nTakahashi, the manager, got interested in the sum of the room numbers of all rooms in the condominium, where each room number is seen as a three-digit integer. Find this sum.\n\n## Constraints\n\n*   $1 \\leq N,K \\leq 9$\n*   $N$ and $K$ are integers.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$ $K$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc203_b","tags":[],"sample_group":[["1 2","203\n\nThe condominium has two rooms $101$ and $102$. We have $101+102=203$."],["3 3","1818"]],"created_at":"2026-03-03 11:01:14"}}