<reponame>tiagomendes7/SSof-Project1920
a = source()
b = 1
if(a==c):
    a = 2
    if(b==d):
        a = source3()
else:
    a = source2()
sink(a)

a = source()
b = 1
if(a==c):
    a = 2
    if(b==d):
        a = source3()
else:
    a = source2()
sink(a)