e002

/* e002            */
/* AC (5ms, 304KB) */
#include <cstdio>
#include <cstring>
#define max(x,y) ((x) > (y) ? (x) : (y))
#define min(x,y) ((x) < (y) ? (x) : (y))

using namespace std;

const int MAXGAME = 10005;
int N, M, ans, l ,r, sgValue[MAXGAME];

int SG(int x)
{
    if(sgValue[x] != -1) return sgValue[x];

    bool vis[MAXGAME - 4]{};

    for(int i = 1; i <= M; i++)
        if(x >= i) vis[SG(x - i)] = true;

    for(int i = 0; i < MAXGAME; i++)
        if(!vis[i]) return sgValue[x] = i;
}

int main()
{
    while(~scanf("%d %d", &N, &M))
    {
        memset(sgValue, -1, sizeof(int) * MAXGAME);
        ans = sgValue[0] = 0;

        for(int i = 0; i < N && scanf("%d %d", &l, &r); i++)
            ans ^= SG(r - l - 1);

        if(ans) puts("OpenChan");
        else puts("Kitty");
    }
    return 0;
}