#include <stdio.h>
#include <string.h>
void xoa(char a[], int n, int m){
for (int i = n; i < c - m; i++)
a[i] = a[i + m];
a[c - m] = '\0';
}
int main(){
int n, m;
char a[1000];
fgets(a
, sizeof(a
), stdin
);
xoa(a, n, m);
}
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