def pali(s):
    n = len(s)
    result = True
    for i in range(n//2):
        if s[i] != s[-i-1]:
            result = False
    return(result)

mf1 = open("/Users/koc/Desktop/next.txt", "r")
for s in mf1:
    t = s[0:len(s)-1]
    print(t)
    
mf1 = open("/Users/koc/Desktop/next.txt", "r")
mw1 = open("/Users/koc/Desktop/xyz1.txt", "w")
for s in mf1:
    mw1.write(s)
mw1.close()

mf2 = open("/Users/koc/Desktop/words.txt", "r")
mw2 = open("/Users/koc/Desktop/xyz2.txt", "w")

for s in mf2:
    t = s[0:len(s)-1]
    if pali(t):
        mw2.write(s)
mw2.close()