if (strcmp(tmp, "AND") == 0) {		// ========================== AND Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						char Input2[100];
						fscanf(fp, "%s %s %s\n", Input1, Input2, temp);
						if (isValid(Input1) && isValid(Input2)) {
							Operate(Input1, Input2, temp, MAX, 'A');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "OR") == 0) {	// ========================== OR Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						char Input2[100];
						fscanf(fp, "%s %s %s\n", Input1, Input2, temp);
						if (isValid(Input1) && isValid(Input2)) {
							Operate(Input1, Input2, temp, MAX, 'O');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "NOT") == 0) {	// ========================== NOT Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						fscanf(fp, "%s %s\n", Input1, temp);
						if (isValid(Input1)) {
							Operate(Input1, NULL, temp, MAX, 'T');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "XOR") == 0) {	// ========================== XOR Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						char Input2[100];
						fscanf(fp, "%s %s %s\n", Input1, Input2, temp);
						if (isValid(Input1) && isValid(Input2)) {
							Operate(Input1, Input2, temp, MAX, 'X');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "NAND") == 0) {	// ========================== NAND Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						char Input2[100];
						fscanf(fp, "%s %s %s\n", Input1, Input2, temp);
						if (isValid(Input1) && isValid(Input2)) {
							Operate(Input1, Input2, temp, MAX, 'D');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "NOR") == 0) {	// ========================== NOR Case ==============================
					if (validLine[j] == 0) {
						char temp[100];
						char Input1[100];
						char Input2[100];
						fscanf(fp, "%s %s %s\n", Input1, Input2, temp);
						if (isValid(Input1) && isValid(Input2)) {
							Operate(Input1, Input2, temp, MAX, 'R');
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "DECODER") == 0) {	// ========================== Decoder Case ==============================
					if (validLine[j] == 0) {
						int nInputs, VALID = 0;
						fscanf(fp, "%d ", &nInputs);
						int nOutputs = pow(2, nInputs);
						char **inputs = malloc(sizeof(char*) * 5000);
						for (i = 0; i < 5000; i++) inputs[i] = malloc(sizeof(char) * 500);
						char **outputs = malloc(sizeof(char*) * 10000);
						for (i = 0; i < 5000; i++) outputs[i] = malloc(sizeof(char) * 500);
						for (i = 0; i < nInputs; i++) fscanf(fp, "%s ", &inputs[i][0]);
						for (i = 0; i < nOutputs; i++) (i == nOutputs-1) ? fscanf(fp, "%s\n", &outputs[i][0]) : fscanf(fp, "%s ", &outputs[i][0]);
						for (i = 0; i < nInputs; i++) {
							if (isValid(inputs[i])) {
								VALID = 1;
							} else {
								VALID = 0;
								break;
							}
						}
						if (VALID == 1) {
							Decoder(nInputs, nOutputs, inputs, outputs, MAX);
							validLine[j] = 1;
						}
					} else fgets(NA, 10000, fp);
				} else if (strcmp(tmp, "MULTIPLEXER") == 0) {	// ======================= Multiplexer Case ==============================
					if (validLine[j] == 0) {
						int nInputs, nSelectors, VALID = 0;
						fscanf(fp, "%d ", &nInputs);
						if (power2(nInputs) == 0) {
							printf("error");
							return 0;
						}
						nSelectors = log(nInputs)/log(2);
						char **inputs = malloc(sizeof(char*) * 5000);
						for (i = 0; i < 5000; i++) inputs[i] = malloc(sizeof(char) * 500);
						char **selectors = malloc(sizeof(char*) * 5000);
						for (i = 0; i < 5000; i++) selectors[i] = malloc(sizeof(char) * 500);
						char output[500];
						for (i = 0; i < nInputs; i++) fscanf(fp, "%s ", &inputs[i][0]);
						for (i = 0; i < nSelectors; i++) fscanf(fp, "%s ", &selectors[i][0]);
						fscanf(fp, "%s\n", output);
						for (i = 0; i < nInputs; i++) {
							if (isValid(inputs[i])) {
								VALID = 1;
							} else {
								VALID = 0;
								break;
							}
						}
						if (VALID == 1) {
							for (i = 0; i < nSelectors; i++) {
								if (isValid(selectors[i])) {
									VALID = 1;
								} else {
									VALID = 0;
									break;
								}
							}
						}
						if (VALID == 1) {
							Multiplexer(nInputs, nSelectors, inputs, selectors, output, MAX);
							validLine[j] = 1;
						}