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Finally finished my algebra take home and turned it in this morning just 5 minutes before the deadline. the problems are not easy and they probably took me about 17 hours since i need to constantly refer to the textbook and going back and forth. I didn't sleep at all last night and I just found out today at the problem review session of math 113, another TA, who is undergraduate, alex, didn't sleep last night either. he just had a test this morning, and after the review session, he went back to the main library to go on studying for the ODE test tomorrow. I am very impressed by how hard american undergraduates worked. I bought a coke and chatted with jun and ding in the math dept and went back home and turned on my computer and listened to BR klassik while I lied on bed and sleep. after i woke up it's 8:30 in the night and the music changed from German Requiem by Brahms to another beautiful chorus that i never heard before. it's so relaxing and beautiful that i don't want to get up. however i was very hungry and i cooked noodles while talking to juan on my laptop. after it was ready, i just had little before i felt full. probably because of the lack of sleep that robbed my appetite. anyway it's 12:30 now have a good night.