n = input()
l = []
l.extend(n)
b1 = 1
for i in range(len(n)-1):
    n = input()
    l.extend(n)
print(len(n),end=' ')
for i in range(1,len(l)):
    if l[i] == l[i-1]:
        b1 += 1
        if i == len(l)-1:
            print(b1)
    else:
        print(b1,end=' ')
        b1 = 1
        if i == len(l)-1:
            print(b1)