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  1. main(h,m,s){scanf("%dh%dm%ds",&h,&m,&s);s+=h*3600+m*60;h=s/3600;m=s/60;printf("%02d:%02d:%02d",h%24,m%60,s%60);}
  2.  
Success #stdin #stdout 0s 2160KB
stdin
25h10m0s
stdout
01:10:00