x = 1
y = 1.1
assert x+y == 2.1
#print(x+y)

x = 1.1
y = 1
assert x+y == 2.1
#print(x+y)

x = 1.1
y = 2.1
assert x+y == 3.2
#print(x+y)

x = "ab"
y = "cd"
assert x+y == "abcd"
#print(x+y)

x = 2
y = 3
assert x**y == 8
#print(x**y)

x = 2.0
y = 3
assert x**y == 8.0
#print(x**y)

x = 2
y = 3.0
assert x**y == 8.0
#print(x**y)

x = 2.0
y = 3.0
assert x**y == 8.0
#print(x**y)