a ='I'
b ='like'
c ='python'
print(a+' '+b+' '+c)
s=' sdghHhf '
s1 = s.strip()
print(s1)
s2 = s1.lower()
print(s2)
s3 = s1.upper()
print(s3)
s4 = s1.find('h')
print(s4)
x='I {} pyhon'
x1 = x.format('like')
print(x1)
x2 = x.replace('{}','like')
print(x2)
capital='人民币100万元'
print(len(capital))
print(capital.isdigit())