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# Calculate the number 2942

NUMBERMANIA: Calculate the number 2942 using numbers [3, 7, 4, 5, 49, 279] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa De Sousa.
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### Can you give me a push??

A man is in bed with his wife when there is a rat-a-tat-tat on the door.

He rolls over and looks at his clock, and it's half past three in the morning. "I'm not getting out of bed at this time," he thinks, and rolls over. Then, a louder knock follows.

"Aren't you going to answer that?" says his wife.

So he drags himself out of bed and goes downstairs. He opens the door and there is man standing at the door. It didn't take the homeowner long to realize the man was drunk.

"Hi there," slurs the stranger. "Can you give me a push??"

"No, get lost. It's half past three. I was in bed," says the man and slams the door. He goes back up to bed and tells his wife what happened and she says,

"Dave, that wasn't very nice of you. Remember that night we broke down in the pouring rain on the way to pick the kids up from the baby sitter and you had to knock on that man's house to get us started again? What would have happened if he'd told us to get lost??"

"But the guy was drunk," says the husband.

"It doesn't matter," says the wife. "He needs our help and it would be the right thing to help him." So the husband gets out of bed again, gets dressed, and goes downstairs.

He opens the door, and not being able to see the stranger anywhere he shouts, "Hey, do you still want a push??"

And he hears a voice cry out, "Yeah, please."

So, still being unable to see the stranger he shouts, "Where are you?"

And the stranger replies, "I'm over here, on your swing."

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### First electronic digital computer

In 1973, a US Federal Judge signed his decision following a lengthy court trial which declared the ENIAC patent invalid and belatedly credited physicist John Atanasoff with developing the first electronic digital computer, the Atanasoff- Berry Computer or the ABC. Built in 1937-42 at Iowa State University by Atanadoff and a graduate student, Clifford Berry, it introduced the ideas of binary arithmetic, regenerative memory, and logic circuits. These ideas were communicated from Atanasoff to John Mauchly, who used them in the design of the better-known ENIAC built and patented several years later.
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