1 #include <iostream> 2 #include <stdio.h> 3 #include <algorithm> 4 #include <cstring> 5 #include <string.h> 6 #include <math.h> 7 #include <queue> 8 #include <stack> 9 #include <stdlib.h>10 #include <map>11 using namespace std;12 #define LL long long 13 #define sf(a) scanf("%d",&(a));14 15 #define N 10001016 17 int main(){18     int n;19     scanf("%d",&n);20     if(n%2==0) printf("white\n1 2\n");21     else printf("black\n");22 23 24     return 0;25 }