#include <bits/stdc++.h>   using namespace std;   int main() {     long long n;     string a, b, c;     vector<vector<long long> > arr(3, vector<long long>((26 * 2) + 1, 0));     cin >> n;     cin >> a >> b >> c;     long long len = a.length();     for (long long i = 0; i < len; i++) {       char cur = a[i];       if (cur >=  a ) {         arr[0][cur - 97]++;       } else {         arr[0][cur - 65 + 26]++;       }     }     for (long long i = 0; i < len; i++) {       char cur = b[i];       if (cur >=  a ) {         arr[1][cur - 97]++;       } else {         arr[1][cur - 65 + 26]++;       }     }     for (long long i = 0; i < len; i++) {       char cur = c[i];       if (cur >=  a ) {         arr[2][cur - 97]++;       } else {         arr[2][cur - 65 + 26]++;       }     }     for (long long i = 0; i < 52; i++) {       if (arr[0][i] > arr[0][52]) {         arr[0][52] = arr[0][i];       }       if (arr[1][i] > arr[1][52]) {         arr[1][52] = arr[1][i];       }       if (arr[2][i] > arr[2][52]) {         arr[2][52] = arr[2][i];       }     }     long long x = arr[0][52], y = arr[1][52], z = arr[2][52];     if (n == 1 && x == len) {       x = len - 1;     } else if (x + n >= len) {       x = len;     } else {       x += n;     }     if (n == 1 && y == len) {       y = len - 1;     } else if (y + n >= len) {       y = len;     } else {       y += n;     }     if (n == 1 && z == len) {       z = len - 1;     } else if (z + n >= len) {       z = len;     } else {       z += n;     }     if (x > y && x > z) {       cout <<  Kuro n ;     } else if (y > x && y > z) {       cout <<  Shiro n ;     } else if (z > x && z > y) {       cout <<  Katie n ;     } else {       cout <<  Draw n ;     }     return 0;   }   