#include<iostream>
#include<cctype>
using namespace std;
int main()
{
int index=0;
string sequence1,sequence2;
cout<<"enter the sequence"<<endl;
getline(cin,sequence1);
for(index=0;index<20;++index)
if(!ispunct(sequence1[index]))
sequence2[index]=sequence1[index];
cout<<sequence2<<endl;
return 0;
}
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