#include <iostream.hfa>
#include <collections/string.hfa>
#include <collections/string_res.hfa>


void istream_cstr(void) {
	enum { size = 999, rsize = size - 1 }; // string size, read size
    char s1[size], s2[size], s3[size], si[size];
    sin | wdi(size,rsize,s1) | wdi(size,rsize,s2) | wdi(size,rsize,s3);
    sout | s1;
    sout | s2;
    sout | s3;
    for(;;) {
        sin | wdi(size,rsize,si);
      if (si[0] == '=') break;
        sout | si;
    }
}

string accumulator;

void reset_otherStringAction(void) {
    accumulator = "";
}
void step_otherStringAction(void) {
    string localAction = "--";
    accumulator += localAction(0,1);
    sout | accumulator;
}

void istream_string_res(void) {
    string_res s1, s2, s3, si;
    sin | s1 | s2 | s3;
    sout | s1;        step_otherStringAction();
    sout | s2;        step_otherStringAction();
    sout | s3;        step_otherStringAction();
    for(;;) {
        sin | si;
      if (size(si) > 0 && si[0] == '=') break;
        sout | si;    step_otherStringAction();
    }
}

void istream_string(void) {
    string s1, s2, s3, si;
    sin | s1 | s2 | s3;
    sout | s1;        step_otherStringAction();
    sout | s2;        step_otherStringAction();
    sout | s3;        step_otherStringAction();
    for(;;) {
        sin | si;
      if (size(si) > 0 && si[0] == '=') break;
        sout | si;    step_otherStringAction();
    }
}


int main() {
    istream_cstr();         sout | "=";
    istream_string_res();   sout | "=";  reset_otherStringAction();
    istream_string();
}