# Write a Python program to Skew Nested Tuple Summation 
 # Python3 code to demonstrate working of 
# Skew Nested Tuple Summation
# Using infinite loop
  
# initializing tuple
test_tup = (5, (6, (1, (9, (10, None)))))
  
# printing original tuple
print("The original tuple is : " + str(test_tup))
  
res = 0
while test_tup:
    res += test_tup[0]
      
    # assigning inner tuple as original
    test_tup = test_tup[1]
  
# printing result 
print("Summation of 1st positions : " + str(res)) 