{"problem":{"name":"Base 2","description":{"content":"You are given a sequence $A=(A_0,A_1,\\dots,A_{63})$ of length $64$ consisting of $0$ and $1$. Find $A_0 2^0 + A_1 2^1 + \\dots + A_{63} 2^{63}$.","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc306_b"},"statements":[{"statement_type":"Markdown","content":"You are given a sequence $A=(A_0,A_1,\\dots,A_{63})$ of length $64$ consisting of $0$ and $1$.\nFind $A_0 2^0 + A_1 2^1 + \\dots + A_{63} 2^{63}$.\n\n## Constraints\n\n*   $A_i$ is $0$ or $1$.\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$A_0$ $A_1$ $\\dots$ $A_{63}$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc306_b","tags":[],"sample_group":[["1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0","13\n\n$A_0 2^0 + A_1 2^1 + \\dots + A_{63} 2^{63} = 2^0 + 2^2 + 2^3 = 13$."],["1 0 1 0 1 0 0 0 0 1 0 0 1 1 0 1 1 1 1 0 0 0 1 0 0 1 1 1 1 1 1 0 0 0 0 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0","766067858140017173"]],"created_at":"2026-03-03 11:01:14"}}