def beautifulTriplets(d, arr):
    count=0
    for i in range(0,len(arr)-2):
        for j in range(i+1,len(arr)-1):
            if(abs(arr[i]-arr[j])==d):
                for k in range(j+1,len(arr)):
                    if(abs(arr[j]-arr[k])==d):
                        print(i,j,k)
                        count=count+1
    return count