def len = 100
boolean [] arr = new boolean[len]
arr[0] = false;//Fill 1, arr[1] =3

def times = Math.sqrt(len) + 2 
for(def i = 1; i < times; i++){
def j = i+i+1;
def dist = i+i+1;
for(; j < len; j=dist+j){
arr[ j ] = false;
}
}
arr.eachWithIndex{v,i ->println v; println i*2+1 }