10pt求调整

#include<iostream>
#include<algorithm>
using namespace std;
int dp[1005];
int main()
{
	ios::sync_with_stdio;
	cin.tie(0);cout.tie(0);
	char s[1005];
	cin >> s+1;
	int len =strlen(s);
	for (int i = 1;i <= len;i++)
	{
		dp[i] = dp[i - 1] + (s[i-1] != s[len - i]);
	}
	cout << dp[len];




}