codeforces 525B Pasha and String

#include <cstdio>
#include <iostream>
#include <cstring>
#include <set>
#include <cmath>
#include <algorithm>
#include <vector>
#include <map>

using namespace std;

char a[200010];
int num[200010];
int main(){
	gets(a);
	int n;
	scanf("%d",&n);
	int len = strlen(a);
	for(int i = 0;i < n ;i++){
		scanf("%d",&num[i]);
		num[i]--;
	}
	sort(num,num+n);
	num[n] = (len+1)/2;
	for(int i = n-1;i >= 0;i--){
		if(!(i&1)){
			for(int j = num[i];j < (num[i+1]); j++){
				swap(a[j],a[len-j-1]);
			}
		}
	}
	puts(a);
	putchar('\n');
	return 0;
}