Description

Please help Xiao Gua find the position of the first occurrence of a specific character in a string.

Input Format

The first line contains an integer n (1 ≤ n ≤ 10000), representing the length of the string. The second line contains a string of length n, where each character is guaranteed to be a lowercase letter. The third line contains a character, representing the character to be searched for.

Output Format

Output a single integer representing the position of the first occurrence of the character in the string (indexed from 0). If the character does not appear in the string, output -1.

```input1 5 abcde d ``` ```output1 3 ``` ## 翻译结果

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