import string

class solution:

def seperate(self):

sStr1 = 'ab,cde,fgh,ijk'

sStr2 = ','

sStr1 = sStr1[sStr1.find(sStr2) + 1:]

print sStr1

def scan(self):

sStr1 = 'cekjgdklab'

sStr2 = 'gka'

nPos = -1

for c in sStr1:

if c in sStr2:

nPos = sStr1.index(c)

break

print nPos

def upperandlower(self,s):

print s.upper() #all change to upper

print s.lower() #all change to lower

def joinstring(self):

delimiter = ','

mylist = ['Brazil', 'Russia', 'India', 'China']

str = 'www'

str2 = 'ww ee rr'

print delimiter.join(mylist)

print ' '.join(mylist)

print ' '.join(str)

print ' '.join(str2)

s = solution()

s.seperate()

s.scan()

s.upperandlower('SSSuuOpppRRR7773')

s.joinstring()

s.OnlyCharNum('a000aab')