# PMAT-502bh (Tranche 2): str.format with sequential {} placeholders.
def one(x: int) -> str:
return "val={}".format(x)
def two(a: int, b: int) -> str:
return "{} + {} done".format(a, b)
def with_str(name: str, n: int) -> str:
return "{}: {}".format(name, n)
def escaped(x: int) -> str:
return "{{literal}} {}".format(x)