{"problem":{"name":"Five Variables","description":{"content":"We have five variables $x_1, x_2, x_3, x_4,$ and $x_5$. The variable $x_i$ was initially assigned a value of $i$. Snuke chose one of these variables and assigned it $0$. You are given the values of th","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc170_a"},"statements":[{"statement_type":"Markdown","content":"We have five variables $x_1, x_2, x_3, x_4,$ and $x_5$.\nThe variable $x_i$ was initially assigned a value of $i$.\nSnuke chose one of these variables and assigned it $0$.\nYou are given the values of the five variables after this assignment.\nFind out which variable Snuke assigned $0$.\n\n## Constraints\n\n*   The values of $x_1, x_2, x_3, x_4,$ and $x_5$ given as input are a possible outcome of the assignment by Snuke.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$x_1$ $x_2$ $x_3$ $x_4$ $x_5$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc170_a","tags":[],"sample_group":[["0 2 3 4 5","1\n\nIn this case, Snuke assigned $0$ to $x_1$, so we should print $1$."],["1 2 0 4 5","3"]],"created_at":"2026-03-03 11:01:14"}}