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First solution in Clear category for Right to Left by Michal_Cichy
def left_join(phrases):
phrases=list(phrases)
for i in range(len(phrases)):
while phrases[i].find("right")!=-1:
pos=phrases[i].find("right")
if pos!=-1:
slowo=phrases[i][:pos]+"left"+phrases[i][pos+5:]
phrases[i]=slowo
slowo=""
for i in range(len(phrases)):
slowo+=phrases[i]
if i
Nov. 8, 2016