#include <stdio.h>
int main() {
int a=9;
int n;
int m;
int x;
int y;
int c1,c2;
y=(a-1)/2;
x=1;
c1=(y-1)/2;
c2=c1;
for (m=1;m<=y;m++) {
y--;
for (n=0;n<=c1;n++) {
}
for (n=1;n<=x;n++) {
}
for (n=1;n<=c2;n++) {
}
for (n=0;n<=c2;n++) {
}
for (n=1;n<=x;n++) {
}
c1--;
c2=c1;
x+=2;
}
x=a;
y=1;
for (m=0;m<=(a/2);m++) {
for (n=1;n<=y;n++) {
}
for (n=1;n<=x;n++) {
}
y++;;
x-=2;
}
}
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