Overview: 2 questions will be solved this time.Among them
           ☆1 arithmetic calculations
           ☆1 integer calculations

[1/2 Formula]
    Work: Calculate the value of equation !(50) .
    Question type: Mathematical calculation
    Solution:
          !(50)
        =0
    Answer:!(50)=0
[2/2 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 658*3553565672524545455656554652
    Solution:
    658*3553565672524545455656554652 = 2338246212521150909822012961016
    Column vertical calculation:

																																	6	5	8
✖								3	5	5	3	5	6	5	6	7	2	5	2	4	5	4	5	4	5	5	6	5	6	5	5	4	6	5	2
																																1	3	1	6
																															3	2	9	0
																														3	9	4	8
																													2	6	3	2
																												3	2	9	0
																											3	2	9	0
																										3	9	4	8
																									3	2	9	0
																								3	9	4	8
																							3	2	9	0
																						3	2	9	0
																					2	6	3	2
																				3	2	9	0
																			2	6	3	2
																		3	2	9	0
																	2	6	3	2
																1	3	1	6
															3	2	9	0
														1	3	1	6
													4	6	0	6
												3	9	4	8
											3	2	9	0
										3	9	4	8
									3	2	9	0
								1	9	7	4
							3	2	9	0
						3	2	9	0
					1	9	7	4
					2	3	3	8	2	4	6	2	1	2	5	2	1	1	5	0	9	0	9	8	2	2	0	1	2	9	6	1	0	1	6

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