#include <stdio.h>
int main()
{
int k = 4;
int m = 1;
for (int i=1; i<=5; i=i+1) {
for (int j=1; j<=k; j=j+1) {
}
for (int j=1; j<=m; j=j+1) {
}
k = k - 1;
m = m + 1;
}
}
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