Stuff

def primo(n): imprime = True for i in range(2,n-1):  if n%i==0:    imprime = False    break  if imprime:    print n else:    lista.append(n) def main(): global lista lista = [1] for n in range(input()):  a = raw_input().split()  for m in range(int(a[0]),int(a[1])+1):   if m not in lista:    primo(m) main()