#include<cstdio>
#include<climits>
using namespace std;
int main()
{
int a[9],s[6],min,i;
while(scanf("%d%d%d%d%d%d%d%d%d",&a[0],&a[1],&a[2],&a[3],&a[4],&a[5],&a[6],&a[7],&a[8])!=EOF)
{
min=INT_MAX;
s[0]=a[3]+a[6]+a[2]+a[8]+a[1]+a[4];
s[1]=a[3]+a[6]+a[1]+a[7]+a[2]+a[5];
s[2]=a[5]+a[8]+a[1]+a[7]+a[0]+a[3];
s[3]=a[5]+a[8]+a[0]+a[6]+a[1]+a[4];
s[4]=a[4]+a[7]+a[2]+a[8]+a[0]+a[3];
s[5]=a[4]+a[7]+a[0]+a[6]+a[2]+a[5];
for(i=0;i<6;i++)
{
if(s[i]<min)
{
min=s[i];
}
}
if(min==s[0])
printf("BCG %d",min);
else if(min==s[1])
printf("BGC %d",min);
else if(min==s[2])
printf("CGB %d",min);
else if(min==s[3])
printf("CBG %d",min);
else if(min==s[4])
printf("GCB %d",min);
else if(min==s[5])
printf("GBC %d",min);
printf("\n");
}
return 0;
}

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