Something

#include <stdio.h>

int main() {
	int i, j;
	int A[6][6];
	int B[6][6];


	/* prwta tous arxikopoiw kai exoun stis grammes
	 * stoixeia apo 1 mexri 5 */
	for (i=0; i<6; i++) {
		for (j=0; j<6; j++) {
			A[i][j] = j;
			B[i][j] = j;
		}
	}

	/* tipwnw ton A - idioi einai etsi kai alliws */
	printf("ARXIKOS PINAKAS:\n\n");
	for (i=0; i<6; i++) {
		for (j=0; j<6; j++) {
			printf("%d ", A[i][j]);
		}
		printf("\n");
	}


	/* des tous deiktes, to i einai gia tis grammes
	 * kai to j gia tis stiles */
	for (i=0; i<3; i++) {
		for (j=3; j<6; j++) {
			B[j][i] = A[i][j]; /* allazw to katw aristera */
			B[i][j] = A[j][i]; /* allazw to panw de3ia */
		}
	}

	/* tipwnw ton B */
	printf("\n\n\nPINAKAS META APO PRA3I:\n\n");
	for (i=0; i<6; i++) {
		for (j=0; j<6; j++) {
			printf("%d ", B[i][j]);
		}
		printf("\n");
	}
	
	return 0;
}