#string to int
a = "3"
print(a)
print(type(a))

b = int(a)
print(b)
print(type(b))

#int to float
a = 3
print(a)
print(type(a))

b = float(a)
print(b)
print(type(b))

#float to str
a = 3.5
print(a)
print(type(a))

b = str(a)
print(b)
print(type(b))

#str to float
a = "3.5"
print(a)
print(type(a))

b = float(a)
print(b)
print(type(b))