python workspace, a little bit global

a=100

def first():
b=a+1
c=a+2
return b,c

def second():
d=bb+11
e=cc+12
return d,e

class thirdC:
def fourth(self):
f=dd+101
g=ee+102
return f,g
def fifth():
h=ff+1001
i=gg+1002
(j,k)=second()
return h,i,j,k

if __name__=='__main__':
(bb,cc)=first()
(dd,ee)=second()
tc=thirdC()
(ff,gg)=tc.fourth()
(hh,ii,jj,kk)=fifth()