Python - string formatting (%, and the format ())

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print("%sDEF"%"ABC")
print("%d456%d"%(123,789))
a = "%d456%d"%(123,789)
print(a,end="\n\n")

print("{}DEF".format("ABC"))
print("{0}DEF".format("ABC"))
print("{}456{}".format(123,789))
print("{0}456{1}".format(123,789))
b = "{}456{}".format(123,789)
print(b)

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 operation result: