#include <cstring>
#include <iostream>
 
void print(const char* str, unsigned width)
{
    const char* line = str;
    const char* end = line + std::strlen(line);
    const char* letter = line;
 
    while ( line < end )
    {
        while ((letter - line) < width && letter != end)
            std::cout << *letter++;
 
        std::cout << '\n';
        line += width;
    }
}
 
int main()
{
    const char* s = "Supercalifragilisticexpialidocious";
 
    print(s, 2);
}

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