#include using namespace std; int main() { string firstnumber = "1"; string secondnumber = ""; unsigned int i = 0; unsigned int termcounter = 0; cout << firstnumber << endl; while(termcounter < 12){ while(i < (unsigned) firstnumber.size()){ if(firstnumber[i] == '0') secondnumber.append("12"); if(firstnumber[i] == '1') secondnumber.append("23"); if(firstnumber[i] == '2') secondnumber.append("34"); if(firstnumber[i] == '3') secondnumber.append("45"); if(firstnumber[i] == '4') secondnumber.append("56"); if(firstnumber[i] == '5') secondnumber.append("67"); if(firstnumber[i] == '6') secondnumber.append("78"); if(firstnumber[i] == '7') secondnumber.append("89"); if(firstnumber[i] == '8') secondnumber.append("90"); if(firstnumber[i] == '9') secondnumber.append("1"); i++; } cout << secondnumber << endl; firstnumber = secondnumber; secondnumber = ""; i = 0; termcounter++; } return 0; }