#50207: python笨方法
t = {'A': 1, 'B': 2, 'C': 3, 'D': 4, 'E': 5, 'F': 6, 'G': 7,
'H': 8, 'I': 9, 'J': 10, 'K': 11, 'L': 12, 'M': 13,
'N': 14, 'O': 15, 'P': 16, 'Q': 17, 'R': 18, 'S': 19,
'T': 20, 'U': 21, 'V': 22, 'W': 23, 'X': 24, 'Y': 25, 'Z': 26}
e=list(input())
n=[]
for i in e:
n.append(t[i])
y=[]
for j in range(len(n)-1):
a=n[j]
b=n[j+1]
if b>a:
a,b=b,a
y.append(a-b)
print(''.join(map(str,y)))