import mod1
# from mod1 import add, sub

print(mod1.add(3,4))
print(mod1.sub(4,2))

# print(add(3,4))
# print(sub(4,2))

import mod2
print(mod2.PI)
a = mod2.Math()
print(a.solv(2))
print(mod2.add(mod2.PI, 4.4))