{"problem":{"name":"Cookie Exchanges","description":{"content":"Takahashi, Aoki and Snuke love cookies. They have $A$, $B$ and $C$ cookies, respectively. Now, they will exchange those cookies by repeating the action below: *   Each person simultaneously divides h","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"agc014_a"},"statements":[{"statement_type":"Markdown","content":"Takahashi, Aoki and Snuke love cookies. They have $A$, $B$ and $C$ cookies, respectively. Now, they will exchange those cookies by repeating the action below:\n\n*   Each person simultaneously divides his cookies in half and gives one half to each of the other two persons.\n\nThis action will be repeated until there is a person with odd number of cookies in hand.\nHow many times will they repeat this action? Note that the answer may not be finite.\n\n## Constraints\n\n*   $1 ≤ A,B,C ≤ 10^9$\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$A$ $B$ $C$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"agc014_a","tags":[],"sample_group":[["4 12 20","3\n\nInitially, Takahashi, Aoki and Snuke have $4$, $12$ and $20$ cookies. Then,\n\n*   After the first action, they have $16$, $12$ and $8$.\n*   After the second action, they have $10$, $12$ and $14$.\n*   After the third action, they have $13$, $12$ and $11$.\n\nNow, Takahashi and Snuke have odd number of cookies, and therefore the answer is $3$."],["14 14 14","\\-1"],["454 414 444","1"]],"created_at":"2026-03-03 11:01:14"}}