个位数统计
x = input()
num = [0,0,0,0,0,0,0,0,0,0]
for i in x:
num[int(i)] += 1
for i in range(10):
if num[i] != 0:
print(str(i)+':'+str(num[i]))
个位数统计
x = input()
num = [0,0,0,0,0,0,0,0,0,0]
for i in x:
num[int(i)] += 1
for i in range(10):
if num[i] != 0:
print(str(i)+':'+str(num[i]))