timefile = file("times.txt", "r")
total_secs = 0

for line in timefile:
    # break line up into hours, minutes, seconds   
    h,m,s = line.rstrip().split(":")
    
    # calculate total seconds on this line
    secs = 3600*int(h) + 60*int(m) + int(s)
    total_secs += secs
    print secs

timefile.close()
print "Total:", total_secs, "seconds"