#include <cstdio>

int main()
{
  // b, g, c
	int first [3];
	int second[3];
	int third [3];

	while ( scanf("%d %d %d %d %d %d %d %d %d", &first[0], &first[1], &first[2], &second[0], &second[1], &second[2], &third[0], &third[1], &third[2]) == 9 )
	{
		int gbc = first[0]+first[2]+second[1]+second[2]+third[0]+third[1];
		int gcb = first[0]+first[2]+second[0]+second[1]+third[1]+third[2];
		int bgc = first[1]+first[2]+second[0]+second[2]+third[0]+third[1];
		int bcg = first[1]+first[2]+second[0]+second[1]+third[0]+third[2];
		int cgb = first[0]+first[1]+second[0]+second[2]+third[1]+third[2];
		int cbg = first[0]+first[1]+second[1]+second[2]+third[0]+third[2];
		int min = gbc;
		if ( min > gcb )
			min = gcb;
		if ( min > bgc )
			min = bgc;
		if ( min > bcg )
			min = bcg;
		if ( min > cgb )
			min = cgb;
		if ( min > cbg )
			min = cbg;

		if ( min == bcg )
			printf("BCG %d\n", min);
		else if ( min == bgc )
			printf("BGC %d\n", min);
		else if ( min == cbg )
			printf("CBG %d\n", min);
		else if ( min == cgb )
			printf("CGB %d\n", min);
		else if ( min == gbc )
			printf("GBC %d\n", min);
		else if ( min == gcb )
			printf("GCB %d\n", min);
	}
	return 0;
}