import math
print(<warning descr="Python version 2.7 does not support a 'F' prefix">f</warning>'{math.pi <warning descr="Python versions 2.7, 3.7 do not support equality signs in f-strings">=</warning>:.2f}')
print(<warning descr="Python version 2.7 does not support a 'F' prefix">f</warning>'{<warning descr="Python version 2.7 does not support a 'F' prefix">f</warning>"{3.1415<warning descr="Python versions 2.7, 3.7 do not support equality signs in f-strings">=</warning>:.1f}":*^20}')