<p>Given a <strong>0-indexed</strong> integer array <code>nums</code>, return <em>the <strong>smallest</strong> index </em><code>i</code><em> of </em><code>nums</code><em> such that </em><code>i mod 10 == nums[i]</code><em>, or </em><code>-1</code><em> if such index does not exist</em>.</p> <p><code>x mod y</code> denotes the <strong>remainder</strong> when <code>x</code> is divided by <code>y</code>.</p> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> nums = [0,1,2] <strong>Output:</strong> 0 <strong>Explanation:</strong> i=0: 0 mod 10 = 0 == nums[0]. i=1: 1 mod 10 = 1 == nums[1]. i=2: 2 mod 10 = 2 == nums[2]. All indices have i mod 10 == nums[i], so we return the smallest index 0. </pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> nums = [4,3,2,1] <strong>Output:</strong> 2 <strong>Explanation:</strong> i=0: 0 mod 10 = 0 != nums[0]. i=1: 1 mod 10 = 1 != nums[1]. i=2: 2 mod 10 = 2 == nums[2]. i=3: 3 mod 10 = 3 != nums[3]. 2 is the only index which has i mod 10 == nums[i]. </pre> <p><strong>Example 3:</strong></p> <pre> <strong>Input:</strong> nums = [1,2,3,4,5,6,7,8,9,0] <strong>Output:</strong> -1 <strong>Explanation:</strong> No index satisfies i mod 10 == nums[i]. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= nums.length <= 100</code></li> <li><code>0 <= nums[i] <= 9</code></li> </ul>