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

void printTimeFromSeconds (unsigned x)
{
  unsigned h,m,s;
  h=x/3600;
  x=x-h*3600;
  m=x/60;
  s=x%60;
  printf("%d:",h);

  if (m<10) printf("0%d:",m);
  else printf("%d:",m);

  if (s<10) printf("0%d ",s);
  else printf("%d ",s);
}

void getTimes ()
{
  unsigned h=0,m=0,s=0;
  unsigned winTime=0,actualTime=0,previousTime=0;;

  scanf("%d:%d:%d",&h,&m,&s);
  winTime=h*3600+m*60+s;

  printTimeFromSeconds(winTime);
  putchar('\n');
  previousTime=winTime;

  while (scanf("%d:%d:%d",&h,&m,&s)==3)
    {

      actualTime=h*3600+m*60+s;

      putchar('+');
      printTimeFromSeconds(actualTime-previousTime);
      printTimeFromSeconds(actualTime-winTime);
      putchar('\n');

      previousTime=actualTime;
    }

}
int main()
{
  getTimes();
  return 0;
}