def sum_range1(n,m=10):
     sum = 0
     for val in range(n , m+1):
               sum += val
     print (sum)
def sum_range2(n=0 , m=10):
      sum =0
      for val in range(n , m+1):
               sum += val
      print (sum)
sum_range1(5)
sum_range2()
