#The below code snippet inputs a list of integers and
#Find all pairs of numbers in the list whose product is even and whose sum is odd.

#User input
user_list = input("Enter the list of numbers in a comma seperated way. eg: 1,3,5,67,8 \n")

# Try catch to handle the case, if the user doesn't input correctly
try:
    num_list = [int(x.strip()) for x in user_list.split(',')]
except:
    print("\n\nThe list of number is not entered correctly. Please run again.")
    print("The code is running on a dummy list for now [1,2,3,4,5]")
    num_list = [1,2,3,4,5]

#Initialise lists to store results
prod_list = []
sum_list = []

#Iterate over the list to find the pairs
for i in range(len(num_list)):
    for j in range(i, len(num_list)):
        if (num_list[i] * num_list[j]) % 2 == 0:
            prod_list.append((num_list[i],num_list[j]))
        if (num_list[i] + num_list[j]) % 2 != 0:
            sum_list.append((num_list[i],num_list[j]))


# Print the results
print("\n\nPair of numbers having even product:",prod_list)
print("\nPair of numbers having odd sum:",sum_list)