#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char* argv[])
{
     char time1[8];
     char time2[8];
     if(argc!=3)
     {
          puts("Incorrect number of arguments, please try again");
          return 0;
     }
     if((strlen(argv[1])!=5) && (strlen(argv[1])!=8) || (strlen(argv[2])!=8) && (strlen(argv[2])!=5))
     {
          puts("Incorrect format of arguments");
          return 0;
     }
     strcat(time1, argv[1]);
     strcat(time2, argv[2]);
}