#include<stdio.h>
int n, aa;
char a;
char d[100][100]={0,};
int input()
{
FILE *ifp;
ifp = fopen("input.txt","r");
fscanf(ifp,"%c %d", &a, &n);
a = a - 65;
fclose(ifp);
return -1;
}
int output()
{
FILE *ofp;
int i, j, s, e;
ofp=fopen("output.txt","w");
for(i=1; i<=n; i++){
s = (n+1)-i;
e = i+(n-1);
for(j=s; j<=e; j++){
a = a % 26;
d[i][j] = a+65;
}
a = a + 1;
}
for(i=1; i<=n; i++){
for(j=1;j<=n*2-1;j++){
fprintf(ofp, "%c ",d[i][j]);
}
fprintf(ofp, "\n");
}
fclose(ofp);
return -1;
}
int main()
{
input();
output();
return -1;
}
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