#include <bits/stdc++.h>
using namespace std;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

template<class T> inline T sqr(T x) {return x*x;}

typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef unsigned long long ULL;

#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

const double EPS = 1e-10;
const double PI  = acos(-1.0);

#define CLR(a) memset((a), 0 ,sizeof(a))

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

int dx[8] = {-1, 0, 1, 0, -1, -1, 1, 1};
int dy[8] = {0, -1, 0, 1, -1, 1, -1, 1};

int main() {
  int n;

  while(cin >> n, n) {
    string s;
    cin >> s;

    VI  a(n), b(n);
    REP(i, n) {
      cin >> a[i] >> b[i];
      a[i]--;
      b[i]--;
    }

    reverse(ALL(a));
    reverse(ALL(b));

    REP(i, n) {
      swap(s[a[i]], s[b[i]]);
      int len = b[i] - a[i];

      s[a[i]] = (s[a[i]] - 'a' + len) % 26 + 'a';
      s[b[i]] = (s[b[i]] - 'a' + len) % 26 + 'a';
    }
    cout << s << endl;
  }
}