human
merge keys two dicts.
assistant
Here is a Python program to merge keys and two dicts

import collections

def merge_keys(d1, d2):
    """Merge keys two dicts"""
    d = d1.copy()
    for k, v in list(d2.items()):
        if k in d:
            d[k] = d[k] + v
        else:
            d[k] = v
    return d

# Enter the dictionary
myDict1 = collections.OrderedDict()
myDict1['a'] = 1
myDict1['b'] = 2
myDict1['c'] = 3

# Enter the dictionary
myDict2 = collections.OrderedDict()
myDict2['a'] = 4
myDict2['b'] = 5
myDict2['c'] = 6

# Calling the function
print((merge_keys(myDict1, myDict2)))

#Example Output
# OrderedDict([('a', 5), ('b', 7), ('c', 9)])

#Remember to inspect code for bugs.