#include <iostream>
#include <vector>
#include <string>
std::vector<std::string> stringFragmenter(const std::string &inputString, int len, int stepSize)
{
std::string::const_iterator currentBegin = inputString.begin();
std::string::const_iterator end = inputString.end();
std::string::const_iterator currentPosition = currentBegin;
std::vector<std::string> output;
std::string pushedString;
while(currentPosition != end - len + 1)
{
currentBegin = currentPosition;
std::string::const_iterator currentEnd = currentBegin + len;
while(currentBegin != currentEnd)
{
pushedString+= *currentBegin;
++currentBegin;
}
output.push_back(pushedString);
currentPosition = currentPosition + stepSize;
//clear the pushedString for next iteration
pushedString.clear();
}
return output;
}
int main()
{
std::string inputString;
std::cin >> inputString;
int length;//this denotes the length of string that has to be displayed(stored) at each time
std::cin >> length;
int stepSize;
std::cin >>stepSize;//this denotes the jump size
std::vector<std::string> fragmentedString = stringFragmenter(inputString, length, stepSize);
//print out the elements of the returned vector so that we can confirm if it contains the correct elements
for(const std::string &elem: fragmentedString)
{
std::cout<<elem<<std::endl;
}
return 0;
}
