#include <iostream> using namespace std; int Pre[1<<16][30]; int main(){ string s, ans; cin>>s; int n = s.size(), q; for (int i=1;i<=n;i++){ for (int j=0;j<26;j++) Pre[i][j] = Pre[i-1][j] + (s[i - 1] - 'a' == j); } cin>>q; while (q--){ int a, b, c, d; cin>>a>>b>>c>>d; ans = "DA\n"; for (int i=0;i<26;i++){ if (Pre[b][i] - Pre[a-1][i] != Pre[d][i] - Pre[c-1][i]) ans = "NE\n"; } cout<<ans; } }