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#include<iostream>
#include<cmath>
#include<algorithm>
#include<string>
using namespace std;
int main()
{
string s;
int sum = 0;
while (getline(cin, s)) {
sum = 0;
for (int i = 0;i < s.length();i++) {
if (s[i] != ' ' && s[i] != '.') {
sum++;
}
else {
if (sum == 0) {
continue;
}
&n...
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