Python: map equivalent of nested for loops

nested-for-map-equiv.py

def nestedFor(m, n):
    """add each element of m to each element of n"""
    result = []

    for i in m:
        for j in n:
            result.append(i+j)

    return result

def mapEquiv(m, n):
    """add each element of m to each element of n"""

    return sum(map(lambda c: list(map(c, n)),
             map(lambda a: lambda b: a + b, m)), [])

m = [10, 20, 30]
n = [3, 4, 5]

print(nestedFor(m, n))  # [13, 14, 15, 23, 24, 25, 33, 34, 35]
print(mapEquiv(m, n))  # [13, 14, 15, 23, 24, 25, 33, 34, 35]