B-1027

#include<cstdio>int main(){    int n;    char c;    while(scanf("%d %c", &n, &c)==2){        int x;        for(x = 1; x < 25; x++)            if(2*x*x<=n+1 && 2*(x+1)*(x+1)>n+1) break;        int cnt_space, cnt_sign;        for(int i = x; i > 0; i--){            cnt_space = x-i; while(cnt_space--) printf(" ");            cnt_sign = 2*i-1; while(cnt_sign--) printf("%c", c);            printf("\n");        }        for(int i = 2; i <= x; i++){            cnt_space = x-i; while(cnt_space--) printf(" ");            cnt_sign = 2*i-1; while(cnt_sign--) printf("%c", c);            printf("\n");        }        printf("%d\n", n+1-2*x*x);    }    return 0;}