Necesito ayuda como hago este programa

Translated:

I need help how do I do this program

Delivery date: tomorrow, 11:59 PM
APK
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MAKE AN APK THAT ASKS FOR TWO NUMBERS AND SHOWS THE SUM AMONG THEM. FOR EXAMPLE IF THE USER PUTS 1 AND 5, THEY MUST ADD: 1 + 2 + 3 + 4 + 5
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Gauss, the well known German mathematician, had a simple method for working this out. In class, along with his fellow students, he was asked to add up all the numbers between 1 and 100. Gauss saw that adding together the two outside numbers, then the next two equalled the same sum 1+100 = 101, 2+99 = 101 and so on. He was first to the front with the answer!

Probably easier in blocks to just keep adding 1....

por_cada

Look for information on this block (por cada número desde).