def index_power(array: list, n: int) -> int:
"""
Find Nth power of the element with index N.
"""
length = len(array)
if n+1 > length:
return -1
data = array[n]
data = data ** n
return int(data)
if __name__ == '__main__':
print('Example:')
print(index_power([1, 2, 3, 4], 2))
assert index_power([1, 2, 3, 4], 2) == 9, "Square"
assert index_power([1, 3, 10, 100], 3) == 1000000, "Cube"
assert index_power([0, 1], 0) == 1, "Zero power"
assert index_power([1, 2], 3) == -1, "IndexError"
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