#encoding: utf-8

s = raw_input()
asc = 0
ans = []
for i in range(0, len(s)):
    asc = (ord(s[i]) - 65 - (i+1)) %26
    if asc < 0:
        ans.append(asc + 26 + 65)
    else:
        ans.append(asc + 65)
    print chr(ans[i]),
print ""