Map

#include <iostream>
#include <string>
#include <cstring>
#include <cmath>
#include <cstdio>

using namespace std;

int main()
{
    string red;
    double y;
    int i, ns=0, we=0, finalNs=0, finalWe=0;
    getline(cin, red);
    for(i=0; i<red.length(); i++)
    {
        ns = 0; we = 0;
        if(red[i]=='n')
        {
            if(isdigit(red[i+1])) ns += red[i+1]-'0';
            if(isdigit(red[i+2])){ns*=10; ns += red[i+2]-'0'; }
        }
        if(red[i]=='s')
        {
            if(isdigit(red[i+1])) ns -= red[i+1]-'0';
            if(isdigit(red[i+2])) {ns*=10; ns -= red[i+2]-'0'; }
        }
        if(red[i]=='w')
        {
            if(isdigit(red[i+1])) we += red[i+1]-'0';
            if(isdigit(red[i+2])){we*=10; we += red[i+2]-'0'; }
        }
        if(red[i]=='e')
        {
            if(isdigit(red[i+1])) we -= red[i+1]-'0';
            if(isdigit(red[i+2])){we*=10; we -= red[i+2]-'0'; }
        }
        finalNs+=ns;
        finalWe+=we;
    }
    y = sqrt(fabs(finalNs*finalNs) + fabs(finalWe*finalWe));
    printf ("%.2f", y);
    return 0;
}