public static void Main(string[] args)
{
string inText = "abcdefghijklmnopqrstuvwxyz0123456789", keyOne, keyTwo, plainText, cipherText;
int keyOneLength, keyTwoLength, inTextLength, k1l1 = 0, k1l2 = 0, k1len = 0, i1len = 0, k2l1 = 0, k2l2 = 0, k2len = 0, i2len = 0, q1l1 = 0, q1l2 = 0, q3l1 = 0, q3l2 = 0, q1len = 0, q3len = 0;
char currentChar;
char[][] quadOne = RectangularArrays.RectangularCharArray(6, 6);
char[][] quadTwo = RectangularArrays.RectangularCharArray(6, 6);
char[][] quadThree = RectangularArrays.RectangularCharArray(6, 6);
char[][] quadFour = RectangularArrays.RectangularCharArray(6, 6);
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
quadOne[i][j] = '0';
quadTwo[i][j] = '0';
quadThree[i][j] = '0';
quadFour[i][j] = '0';
}
}
Console.Write("Enter the encryption key one: ");
keyOne = sc.nextLine();
Console.Write("Enter the encryption key two: ");
keyTwo = sc.nextLine();
keyOneLength = keyOne.Length;
keyTwoLength = keyTwo.Length;
inTextLength = inText.Length;
while (k1l1 < 6 && k1len < keyOneLength)
{
k1l2 = 0;
while (k1l2 < 6 && k1len < keyOneLength)
{
currentChar = keyOne[k1len];
int flag = 0;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (quadFour[i][j] == currentChar)
{
flag = 1;
}
}
}
if (flag == 0)
{
quadFour[k1l1][k1l2] = currentChar;
k1l2++;
}
k1len++;
}
k1l1++;
}
--k1l1;
while (k1l1 < 6 && i1len < inTextLength)
{
while (k1l2 < 6 && i1len < inTextLength)
{
currentChar = inText[i1len];
int flag = 0;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (quadFour[i][j] == currentChar)
{
flag = 1;
}
}
}
if (flag == 0)
{
quadFour[k1l1][k1l2] = currentChar;
k1l2++;
}
i1len++;
}
k1l1++;
k1l2 = 0;
}
while (k2l1 < 6 && k2len < keyTwoLength)
{
k2l2 = 0;
while (k2l2 < 6 && k2len < keyTwoLength)
{
currentChar = keyTwo[k2len];
int flag = 0;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (quadTwo[i][j] == currentChar)
{
flag = 1;
}
}
}
if (flag == 0)
{
quadTwo[k2l1][k2l2] = currentChar;
k2l2++;
}
k2len++;
}
k2l1++;
}
--k2l1;
while (k2l1 < 6 && i2len < inTextLength)
{
while (k2l2 < 6 && i2len < inTextLength)
{
currentChar = inText[i2len];
int flag = 0;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (quadTwo[i][j] == currentChar)
{
flag = 1;
}
}
}
if (flag == 0)
{
quadTwo[k2l1][k2l2] = currentChar;
k2l2++;
}
i2len++;
}
k2l1++;
k2l2 = 0;
}
while (q1l1 < 6 && q1len < inTextLength)
{
q1l2 = 0;
while (q1l2 < 6 && q1len < inTextLength)
{
currentChar = inText[q1len];
int flag = 0;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
if (quadOne[i][j] == currentChar)
{
flag = 1;
}
}
}
if (flag == 0)
{
quadOne[q1l1][q1l2] = currentChar;
q1l2++;
}
q1len++;
}
q1l1++;
}
while (q3l1 < 6 && q3len < inTextLength)
{
q3l2 = 0;
}
}