//No.2803 Bocching Star
#include <stdio.h>
#include <stdlib.h>

int main(void){

    int N, S;
    scanf("%d %d", &N, &S);
    int p[N];
    for(int i = 0; i < N; i++){
        scanf("%d", &p[i]);
    }

    int r[N], cnt = 0;
    for(int i = 0; i < N; i++){
        int isolated = 1;
        for(int j = 0; j < N; j++){
            if(i != j){
                int dis = abs(p[i] - p[j]);
                if(S >= dis){
                    isolated = 0;
                    break;
                }
            }
        }
        if(isolated){
            r[cnt] = i + 1;
            cnt++;
        }
    }

    printf("%d\n", cnt);
    for(int k = 0; k < cnt; k++){
        printf("%d ", r[k]);
    }
    printf("\n");

    return 0;
}