#Khoi tao s truoc
s = 'asfdasfwefewfwfqwhifsadfsafcoijfocwogheqqciwhoqwqwocfqwirjwicjwfcjwoifcmqwofmqcwoeghwogocwogjfgdjgkdlgdmsvmvxsafdkaecjf'
min = 0
khoitaomin = False
maxchar =''
max = 0
minchar =''
"""
Thuat toan su dung vong lap for:
buoc 1: su dung count de tinh xem cai nao lon nhat roi gan vao max cung voi max word
buoc 2: min tuong tu voi max
"""
for word in s:
count = s.count(word)
if(khoitaomin == False):
min = count
khoitaomin = True
if(count > max):
max = count
maxchar = word
if(count < min):
min = count
minchar = word
print("Ky tu max: %c So luong: %d" % (maxchar,max))
print("KY tu min: %c So luong: %d" % (minchar,min))
