import fileinput
s = 0
with fileinput.input() as lines:
for line in lines:
m1 = 0
m2 = 0
mi = -1
for i in range(len(line)-2):
if int(line[i]) > m1:
m1 = int(line[i])
mi = i
for i in range(mi+1, len(line)-1):
if int(line[i]) > m2:
m2 = int(line[i])
print(10*m1+m2)
s += 10*m1+m2
print(s)