n=int(input())
for i in range(n):
 a,b,c=map(int,input().split())
 time=a*2048+b*64+c*4
 a=time//3600
 time-=a*3600
 b=time//60
 time-=b*60
 c=time
 print(str(a)+":"+str(b)+":"+str(c))