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#include<stdio.h> int main() { int i,h,m,time,delta;

  scanf("%d%d",&i,&delta);
  h=i/100;
  m=i%100;
 if(delta>=0){
  m+=delta%60;
  h+=delta/60+m/60;
  m=m%60;
}
else {
	h-=(-delta)/60+1;
	m+=60-(-delta)%60;
	h+=m/60;
}
  time = 100*h+m;
  printf("%d",time);
  return 0;
}