{"raw_statement":[{"iden":"problem statement","content":"You are given strings $S$ and $T$. $S$ consists of lowercase English letters, and $T$ is obtained by inserting a lowercase English letter into $S$.\nFind the position of the inserted character in $T$.  \nIf there are multiple candidates, find any of them."},{"iden":"constraints","content":"*   $1 \\leq |S| \\leq 5\\times 10^5$\n*   $S$ consists of lowercase English letters.\n*   $T$ is obtained by inserting a lowercase English letter into $S$."},{"iden":"input","content":"The input is given from Standard Input in the following format:\n\n$S$\n$T$"},{"iden":"sample input 1","content":"atcoder\natcorder"},{"iden":"sample output 1","content":"5\n\nThe $5$\\-th character from the beginning of $T$, `r`, is inserted."},{"iden":"sample input 2","content":"million\nmilllion"},{"iden":"sample output 2","content":"5\n\nOne of the $3$\\-rd, $4$\\-th, and $5$\\-th characters from the beginning of $T$ is inserted. Thus, printing any one of $3$, $4$, and $5$ is accepted."},{"iden":"sample input 3","content":"vvwvw\nvvvwvw"},{"iden":"sample output 3","content":"3"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}