def rainbow(n):
    rainBow = {0:"Violet",1:"Indigo",2:"Blue",3:"Green",4:"Yellow",5:"Orange",6:"Red"}
    return rainBow[n]
n = int(input("Enter the number (0-6) :"))
print(n, "represents the",rainbow(n),"color of rainbow")

def p2(l,n):
    if n in l:
        print("The number",n,"is present",l.count(n),"times in the array.")
    else:
        print("The number",n,"is not present in the array.")
l = []
for i in range(1,16):
    print("Enter the number",i,":",end='')
    a = int(input())
    l.append(a)
n = int(input("Enter the number to search :"))
p2(l,n)

def p3(l):
    neg = 0 
    pos = 0
    eve = 0 
    odd = 0 
    for i in l:
        if i< 0:
            neg += 1
        elif i > 0:
            pos += 1
        else:
            pass
        if i%2 == 0 :
            eve +=1 
        else:
            odd += 1
    print("There are",neg,"negative numbers",pos,"positive numbers",eve,"even numbers",odd,"odd numbers in the list.")
        
            
l = []
for i in range(1,16):
    print("Enter the number",i,":",end='')
    a = int(input())
    l.append(a)

p3(l)

def lst(list1, list2):
    l = list1 + list2
    l.sort()
    print(l)
l1 = eval(input("Enter the array 1 :"))
l2= eval(input("Enter the array 2 :"))
lst(l1,l2)

def add(m1,m2):
    mat = []
    for i in range(3):
        row = []
        for j in range(3):
            c = m1[i][j] + m2[i][j]
            row.append(c)
        mat.append(row)
    print(mat)
    
def multi(m1,m2):
    mat = []
    for i in range(3):
        row = []
        s = 0
        for j in range(3):
            c = m1[i][j] * m2[j][i]
            s += c
        print(s)
        row.append(s)
        mat.append(row)
    print(mat)
mat1 = [[2, 4, 6], [1, 3, 5], [7, 1, 6]]
mat2 = [[1, 3, 7], [7, 4, 5], [8, 9, 2]]
'''for i in range(1,3):
    for j in range(1,4):
        row = []
        for k in range(1,4):
            print("Enter the element",k,"of row",j,"of matrix",i,":",end="")
            a = int(input(""))
            row.append(a)
        if i == 1:
            mat1.append(row) 
        else:
            mat2.append(row)'''
        
print(mat1)
print(mat2)
#add(mat1,mat2)     
multi(mat1,mat2)

def dist(x1,y1,x2,y2):
    d = ((x2-x1)**2 + (y2-y1)**2)**(1/2)
    return d
l = []
for i in range(1,11):
    print("Enter the coordinates of point",i,", separated by comma :",end ='')
    x,y = eval(input())
    c = [x,y]
    l.append(c)

print(dist(l[0][0],l[0][1],l[9][0],l[9][1]))

def D(lst):
    l =[]
    for i in range(len(lst)-1):
        a = lst[i+1]-lst[i]
        l.append(a)
    return l

seq = eval(input("Enter the list of the sequcence in the list format :"))
D1 = D(seq)
D2 = D(D1)
D3 = D(D2)
print(D1)
print(D2)
print(D3)

def Drag(CD,A,p,V):
    F = (CD*A*p*(V**2))/2
    print(F)
    
CD = float(input("Enter the drag coeeficient (CD) :"))
A = float(input("Enter the projected area of vehicle perpendicular to the velocity vector (A) :"))
p = 1.23
for V in range(0,41,5):
    Drag(CD,A,p,V)

def freq(L):
    unit = []
    for i in L :
        if i not in unit:
            print(i,"occurs", L.count(i),"times in data")
            unit.append(i)
            
lst = eval(input("Enter the list :"))
freq(lst)

// Code here