import re
while True:
try:
s=re.compile("[A-Z]")
st=input()
st2=s.sub('', st)
print(len(st)-len(st2))
except:
break
import re
while True:
try:
s=re.compile("[A-Z]")
st=input()
st2=s.sub('', st)
print(len(st)-len(st2))
except:
break