import os
a = ['alfa', 'bravo', 'charlie', 'delta', 'echo']
for sufix in a:
b = "git checkout vladyslav_lykhyi_{0}".format(sufix)
c = "&& echo {0} >> {0}.txt".format(sufix)
d = "&& echo && date >> current.txt"
e = "&& git push origin vladyslav_lykhyi_{0}".format(sufix)
print(b,c,d,e)
# os.system(b)
# os.system(c)
# os.system(d)
# os.system(d)