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exercising for code.py

+Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28) 
+[Clang 6.0 (clang-600.0.57)] on darwin
+Type "help", "copyright", "credits" or "license()" for more information.
+>>> #연습문제 1. 1부터 100까지 출력
+>>> for i in range(1,101)
+SyntaxError: invalid syntax
+>>> for i in range(1,101):
+	print(i)
+
+	
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+>>> #문제2. 5의 배수의 총합
+>>> sum = 0
+>>> for i range(1,100):
+	
+SyntaxError: invalid syntax
+>>> for i in range(1,1000):
+	if i%5 == 0 :
+		sum=sum +i
+
+		
+>>> print(sum)
+99500
+>>> sum2=0
+>>> for i in range(1,50):
+	if i%5 == 0 :
+		sum2= sum2+i
+
+		
+>>> print(sum2)
+225
+>>> #문제3. 학급의 평균 점수
+>>> A = [70,60,55,75,95,90,80,80,85,100]
+>>> sum = 0
+>>> for i in A:
+	sum = sum + A[i]
+
+	
+Traceback (most recent call last):
+  File "<pyshell#25>", line 2, in <module>
+    sum = sum + A[i]
+IndexError: list index out of range
+>>> for i in A:
+	sum = sum +i
+
+	
+>>> print(sum)
+790
+>>> count = 0
+>>> for i in A:
+	count = count+1
+print(sum/count)
+SyntaxError: invalid syntax
+>>> count = 0
+>>> sum =0
+>>> for i in A:
+	count = count+1
+	sum = sum + i
+
+	
+>>> print(sum/count)
+79.0
+>>> #문제4. 각 혈액형별 학생수의 합계를 구하시오.
+>>> B = ['A','B','A','O','AB','AB','O','A','B','O','B','AB']
+>>> a=0
+>>> b=0
+>>> ab=0
+>>> o=0
+>>> for s in B:
+	if s=='A':
+		a=a+1
+	elif s==
+	
+SyntaxError: invalid syntax
+>>> for s in B:
+	if s=='A':
+		a=a+1
+	elif s=='B':
+		b=b+1
+	elif s=='AB':
+		ab=ab+1
+	else:
+		o=o+1
+
+		
+>>> print(a,b,ab,o)
+3 3 3 3
+>>>