enter code h t = open("CodonUsage.txt","r")
    N=0
    c=t.read(1)
    while(c!='\n'):
        N+=1
        c=t.read(1)
    #print(N)
    #print("\t")
    #print(N)
    t.close()
    print(N)

    N1 =11
    nucCount=([[0 for i in range(N)]for j in range(5)])
    g=0
    nucAlign=([['\0' for i in range(N)]for j in range(N1)])
    t = open("CodonUsage.txt","r")
    p=0

    #print(c)
    counter=[0  for i in range(10) ]
#    for i in range(10):
#        counter[i]=0
#        
    c=t.read(1)
    while(c!=''):
        k=0

        while(c!='\n'):

                nucAlign[p][k]=c

            #print(p,k,c)
            if  c=='T' or c=='u' or c == 't' or c=='U':
                nucCount[0][k] +=1
                #counter[p] +=1
            elif  c=='c' or c=='C' :
                nucCount[1][k] +=1
                #counter[p] +=1

            elif  c=='a' or c=='A':
                nucCount[2][k] +=1
                #counter[p] +=1

            elif  c=='g' or c=='G':
                nucCount[3][k] +=1
                #counter[p] +=1

#            else:
#                nucCount[4][k] +=1
                #counter[p] +=1
            c=t.read(1)
            k +=1

        p +=1

        c=t.read(1)ere