#include <stdio.h>

int main( ) {
   printf("con while: ");
   int i = 1;
   while (i <= 10) {
      printf("%d ", i);
      i += 1;
   }
   
   printf("\n");

   printf("con for: ");
   for (int i = 1; i <= 10; i += 1) {
      printf("%d ", i);
   }
   printf("\n");
}