# 0401.py

u=4
print (eval('u*u+7'))
# 23

def f (x): return x+5

print (eval('f(2)+17'))
# 24

print (eval('f(u+1)'))
# 10

def sommaf (F,x,y):
  f=eval(F); return f(x)+f(y)

def cubo (x): return x*x*x

print (sommaf('cubo',2,5))
# 133