from numpy import*
# Use o navegador Chrome, para copiar/colar a entrada de exemplo 
v1= array(eval(input("v:")))
print(size(v1))
print(v1[0])
print(v1[-1])
print(max(v1))
print(min(v1))
print(sum(v1))
print(round(sum(v1)/size(v1),2))
