{"raw_statement":[{"iden":"problem statement","content":"You are given a string $S$ of length $16$ consisting of `0` and `1`.\nIf the $i$\\-th character of $S$ is `0` for every even number $i$ from $2$ through $16$, print `Yes`; otherwise, print `No`."},{"iden":"constraints","content":"*   $S$ is a string of length $16$ consisting of `0` and `1`."},{"iden":"input","content":"The input is given from Standard Input in the following format:\n\n$S$"},{"iden":"sample input 1","content":"1001000000001010"},{"iden":"sample output 1","content":"No\n\nThe $4$\\-th character of $S=$ `1001000000001010` is `1`, so you should print `No`."},{"iden":"sample input 2","content":"1010100000101000"},{"iden":"sample output 2","content":"Yes\n\nEvery even-positioned character in $S=$ `1010100000101000` is `0`, so you should print `Yes`."},{"iden":"sample input 3","content":"1111111111111111"},{"iden":"sample output 3","content":"No\n\nEvery even-positioned character in $S$ is `1`. Particularly, they are not all `0`, so you should print `No`."}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}