Question
Assume that rain is falling endlessly in the region and the water overflowing from the region is falling in the sea at the both sides. For example, for the above cross-section diagram, the rain will create floods which have areas of 4, 2, 1, 19 and 9 respectively.
Input
A string, which represents slopes and flatlands by ‘/’, ‘\’ and ‘_’ respectively, is given in a line. For example, the region of the above example is given by a string “\\///\_/\/\\\\/_/\\///__\\\_\\/_\/_/\”.
output
Report the areas of floods in the following format:
A
k L1 ,L2 …Lk
In the first line, print the total area A of created floods.
