坐标移动

#include<bits/stdc++.h>
using namespace std;

int main()
{
    string s;
    while(cin >> s) {
        vector<string> v;
        while(s.find(';') != string::npos) {
            string temp = s.substr(0, s.find(';'));
            v.push_back(temp);
            s = s.substr(s.find(';') + 1, s.size() - temp.size());
        }
        int W, A, S, D;
        W = A = S = D = 0;
        for(auto it : v) {
            int flag = 1;
            int num = 0;
            for(int i = 0; i < it.size(); i++) {
                if(i == 0 && (it[i] != 'W' && it[i] != 'A' && it[i] != 'S' && it[i] != 'D')) {
                    flag = 0;
                    break;
                }
                if(i > 0) {
                if(it[i] >= '0' && it[i] <= '9') {
                    num = num * 10 + it[i] - '0';
                } else {
                    flag = 0;
                    break;
                }}
            }
            if(flag) {
                if(it[0] == 'W') W += num;
                if(it[0] == 'A') A += num;
                if(it[0] == 'S') S += num;
                if(it[0] == 'D') D += num;
            }
        }
        cout << D - A << "," <<  W - S << endl;
    }
    return 0;
}