////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// ?????¢
// XCode??§???EOF??\??????Ctrl+D
// ?\???Alt+\
// ans???????§?INT?????????2,147,483,647????¶????????????¨??????????????§long long?????£???????????????????????????
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


////////////////////////////////////////
//ALDS1_14_D:   Multiple String Matching
//Aho-Corasick????????????????????????MLE??????TLE?????£????????§???
//Suffix-Array????????????
////////////////////////////////////////

//#define debug //*******************************************************************************************************************************************
#ifdef debug
#include <chrono>
#endif

#include <iostream>
#include <algorithm> // next_permutation
#include <iomanip>
#include <cmath>
#include <vector>
#include <sstream>
#include <string>
#include <cstring> //memcpy
#include <cstdio>
#include <stack>
#include <queue>
#include <list>
#include <numeric> //accumulate
//#include <map>
//#include <unordered_map> //hash func.
#include <fstream> //ifstream, ofstream
#include <iterator> //insert_iterator::inserter


//#define NDEBUG //If NDEBUG is defined before #include <cassert>, assert will be ignored. You had better define NDEBUG when u submit the code.
#include <cassert> //assert

using namespace std;


#define dout cout
//If u wanna output to a text file instead of standard output, plz define OUTPUTFILE.
//#define OUTPUTFILE "output.txt" //*******************************************************************************************************************************************
#ifdef OUTPUTFILE
#define dout outputfile
ofstream outputfile(OUTPUTFILE);
#define OutputFilePath "/Users/Nag/Documents/Prgm/Test/DerivedData/Test/Build/Products/Debug/output.txt"
#endif


#define din cin
//If u wanna input from a text file instead of standard input, plz define INPUTFROMTEXTFILE???.
//#define INPUTFILE "input.txt" //*******************************************************************************************************************************************
#ifdef INPUTFILE
#define din inputfile
ifstream inputfile(INPUTFILE);
#endif

#define scand(A) scanf("%d", &(A))
#define scans(A) scanf("%s", (A))
#define disp(A) dout << #A << " = " << setw(3) << (A) << endl
#define disP(A) dout << setw(3) << (A) << " "
#define rep(i,a,n) for(int (i)=(a); (i)<(n); (i)++)
#define dispAll(A,n) dout << #A << " = "; rep(j, 0, (n)) {disP(A[j]);} dout << endl
//#define dispAll(A,n) cout << #A << " = "; rep(j, 0, (n)) {cout << setw(3) << A[j] << " ";} cout << endl

#define sign(x) ((x)>0)-((x)<0) //x<0: -1, x=0: 0, x>0: +1
#define p(i) (i)/2
#define l(i) (i)*2
#define r(i) (i)*2+1

int dx[] = {1,-1, 0, 0, 1, 1,-1,-1}; //???????????????????????????????¨??????????????????????????????????
int dy[] = {0, 0,-1, 1,-1, 1, 1,-1};

typedef pair<int,int> pii;
typedef vector<int> vi;
typedef long long ll;
typedef unsigned long ull;

const int INF = (int)2e9+10;
const ll INF_LL = (ll)9e18-1LL; //Be careful for overflow.
const ull INF_ULL = (ull)1e19-1ULL;
const int NONE = -1;
const ll MOD = (ll)1e9+7; //??§???????´???°?????£??¨??¨????????°????????????10???7??????

const int N_MAX = 20010; //num of vertex or element
const int M_MAX = 10010; //num of edge
const int DATA_MAX = 1010;

int N;

int i;
char S[N_MAX];

int height = 0;
int area = 0;
stack<int> backslashStack;
vector<pii> floodAreaArray;


#ifdef debug
#endif



#ifdef debug

void display() {
    
    disp(area);
    disp(height);
    
    disp(backslashStack.size());
    disp(floodAreaArray.size());
    
    dout << endl;
    
    dout << "floodAreaArray = ";
    rep(i,0,floodAreaArray.size()) dout << "( " << floodAreaArray[i].first << ", " << (floodAreaArray[i].second==INF ? 999 : floodAreaArray[i].second) << " ) , ";
    
    dout << endl;
    
}
#endif




int main() {
    
    //cin, cout????????????  ?????¨??????cin?????????????????¨??¨cin??§???scanf?????????????????¨??¨scanf??§??±?????????????????????
    cin.tie(0); //cin??¨cout??????????????????
    ios::sync_with_stdio(false); //iostream??¨stdio??????????????????
    
    //read input data
    scans(S);
    
    //------------------------------------------------------------------------------------------
#ifdef debug
    //start timer
    auto startTime = chrono::system_clock::now();
#endif
    //------------------------------------------------------------------------------------------
    
    strcat(S, "\\"); //sentinel
    N = strlen(S);

#ifdef debug
    disp(S);
    disp(N);
#endif
    
    
    //calc.
    for(i=0; i<N; i++) {
#ifdef debug
        dout << "-----\n";
        disp(i);
        disp(S[i]);
#endif
        
        if(S[i]=='\\') {
            
            if( area != 0 ) {
                if( backslashStack.empty() ) { //area???????¢?????????????????????????????????\??????????´??°´??¨?????¢??????????????????????????¨???????¨??????????
#ifdef debug
                    dout << "floodAreaArray.push_back( " << area << ", h = " << 999 << ")\n";
#endif
                    floodAreaArray.push_back( make_pair(area, INF) );
                }
                
                else { //area??????????¢??????????????????????area???????????\??????????´??°´??¨?????¢??????????????????????????§?????????
#ifdef debug
                    dout << "floodAreaStack.push_back( area = " << area << ", h = " << height << ")\n";
#endif
                    floodAreaArray.push_back( make_pair(area, height) );
                }
                
                area = 0; //??????????????????area???????????????
            }
            
            height--;
#ifdef debug
            dout << "backslashStack.push_back( " << i << " )\n";
#endif
            backslashStack.push(i);
        }
        
        else if(S[i]=='/') {
            
            height++;
            
            if( not backslashStack.empty() ) {
#ifdef debug
                dout << "area += " << i << " - " << backslashStack.top() << "\n";
                dout << "backslashStack.pop()\n";
#endif
                area += i - backslashStack.top();
                backslashStack.pop();
                
                //????¨??????????????????°???????´??°´??¨?????¢?????????
                while( not floodAreaArray.empty() and floodAreaArray.back().second < height) {
#ifdef debug
                    dout << "floodAreaArray.back() = (" << floodAreaArray.back().first << ", " << floodAreaArray.back().second << ")\n";
                    dout << "< height = " << height << "\n";
                    dout << "area += " << floodAreaArray.back().first << "\n";
                    dout << "erase floodAreaArray.back()\n";
#endif
                    area += floodAreaArray.back().first;
                    floodAreaArray.erase(floodAreaArray.end()-1);
                }
            }
            
        }
        
        else {
            //no action for S[i]=='_'
        }
        
#ifdef debug
        display();
#endif
        
    }
    
    
    
    //output
    int totalFloodArea = 0;
    int numOfFloodArea = floodAreaArray.size();
    rep(i,0,numOfFloodArea) totalFloodArea += floodAreaArray[i].first;
    
    printf("%d\n%d", totalFloodArea, numOfFloodArea);
    rep(i,0,numOfFloodArea) printf(" %d", floodAreaArray[i].first);
    puts("");
    
    
    
    
#ifdef debug
    dout << "Please input again.\n";
    
        string landmap;
        cin >> landmap;
//        dout << landmap << endl << "********";
    
        N = landmap.size();
    
        int currentHeight = 0;
        double floodArea;
        int depth;
    
        vector<double> floodAreaData; //????´??°´??°????????¢??????????´???????
    
        int i, j;

    
        //calc.
        for(i=0; i<N; i++) {
            dout << "i=" << i << " ";
            if(landmap[i]=='\\') { //??????????????°??¢?????????????????????????°´??????????????§???????????????????????\???
                dout << "\\ ";
                depth = 1;
                floodArea = 0.5;
    
                for(j=i+1; j<N && depth!=0; j++) { //i???????°´??????????????§????????´????????¢???????¨????
                    if(landmap[j]=='\\') {
                        floodArea += depth + 0.5;
                        depth++;
                    }
                    else if(landmap[j]=='_') {
                        floodArea += depth;
                    }
                    else if(landmap[j]=='/') {
                        depth--;
                        floodArea += depth + 0.5;
                    }
                } //end of j-loop

                dout << "j=" << j << " floodArea=" << floodArea << " depth=" << depth;

                if(depth==0) { //?´??°´??¨?????¢????????????
                    floodAreaData.push_back(floodArea); //?????????????´??°´??¨?????¢?????¢????????????
    
                    i = j-1; //j?????§i-loop????£???°??????i++????????????????????§j???1????¨????
                }
            }

            dout << endl;

        } //end of i-loop
    
    //    if(start==-1) { //?????????????????????????????????????°´??????????????§????????????
    //        //???????????????????????????floodAreaData???empty??§???????????????????????§??£????????????????????????
    //    }
    
    
    
    
        //final output
        cout << accumulate(floodAreaData.begin(), floodAreaData.end(), 0) << endl; //?????¢???
        cout << floodAreaData.size(); //?°´??????????????°
    
        for(auto v:floodAreaData) {
            cout << " " << v;
        }
        cout << endl;
    
    
    

    
        int landHeight[N+1]; //????????????N+1???????????¨???
    
        //calc. landHeight[]???????????¨????¨?????????????
        landHeight[0] = 0;
        for(int i=0; i<N; i++) {
            if(landmap[i]=='\\') {
                currentHeight--;
            }
            else if(landmap[i]=='/') {
                currentHeight++;
            }
            else if(landmap[i]=='_') {
            }
    
            landHeight[i+1] = currentHeight;
        }
    
    
//        //display i & landHeight[]
//        for(int i=0; i<N+1; i++) {
//            dout << setw(2) << i << " ";
//        }
//        dout << endl;
//        for(int i=0; i<N+1; i++) {
//            dout << setw(2) << landHeight[i] << " ";
//        }
//        dout << endl;
    
    
        //?????§????°?????±???????
        int min = *min_element(landHeight,landHeight+N+1);
        int max = *max_element(landHeight,landHeight+N+1);
    
        dout << "min = " << min << " : max = " << max << endl;
    
    
        //print cross-section diagram ????§?Ver.
        dout << "xxx";
        for(int i=0; i<N+1; i++) {
            dout << setw(2) << i;
        }
        dout << endl;
    
        for(int j=max+1; j>=min; j--) {
            dout << setw(3) << j << " ";
            for(int i=0; i<N+1; i++) {
                if(landHeight[i]==j && landmap[i]=='\\') {
                    dout << "\\";
                }
                else if(landHeight[i]+1==j && landmap[i]=='/') {
                    dout << "/";
                }
                else if(landHeight[i]+1==j && landmap[i]=='_') {
                    dout << "_";
                }
                else {
                    dout << "O";
                }
                dout << " ";
            }
            dout << endl;
        }
    
        dout << "xxx";
        for(int i=0; i<N+1; i++) {
            dout << setw(2) << i;
        }
        dout << endl;
    
    
    
        //print cross-section diagram ??¨?§?Ver.
        for(int j=max+1; j>=min; j--) {
            dout << setw(3) << j << " ";
            for(int i=0; i<N+1; i++) {
                if(landHeight[i]==j && landmap[i]=='\\') {
                    dout << "???";
                }
                else if(landHeight[i]+1==j && landmap[i]=='/') {
                    dout << "???";
                }
                else if(landHeight[i]+1==j && landmap[i]=='_') {
                    dout << "???";
                }
                else {
                    dout << "??£";
                }
                //            dout << " ";
            }
            dout << endl;
        }
        
        dout << "xxx";
        for(int i=0; i<N+1; i++) {
            dout << setw(2) << i;
        }
        dout << endl;

#endif
    

    
    
    //------------------------------------------------------------------------------------------
#ifdef debug
    //stop timer
    auto endTime = chrono::system_clock::now();
    auto dur = endTime - startTime;
    auto msec = chrono::duration_cast<chrono::milliseconds>(dur).count();
    dout << fixed << setprecision(4) << (double)msec/1000 << " sec \n";
#endif
    //------------------------------------------------------------------------------------------
    
#ifdef INPUTFILE
    inputfile.close();
#endif
    
#ifdef OUTPUTFILE
    outputfile.close();
    cout << "\"" << OutputFilePath << "\"" << endl;
#endif
    
    return 0;
}

Measured memory_bytes: 3404