char = []
 with open('keratin.txt') as f:
 for line in f:
     for ch in line:
        char.append(ch)
 print(char)
 len(char)


 f1 = open('keratin.txt','r')
 f2 = open('keratin.txt','a+')
 lob = input('Enter length of box =')
 iob = input('Enter the increment of the box =')



 i=0
 lob = 5000
 iob = 1000
 nob = 1 #no. of boxes

 for i in range (0,len(char)-lob):
 b = i

 while( b < lob + i and b < len(char)):
    nC = 0
    nG = 0
    for p in char:
        if p == 'C':
            nC = nC + 1
        if p == 'G':
            nG = nG + 1

    b = b + 1
print(nC)
print(nG)
i = i + iob
nob = nob + 1