#include <stdio.h>
int main(void) {
char s[100001],a[100001];
int n,k,q,c=0;
scanf("%d %d %s",&n
,&k
,s
); for(q=0;s[q]!='1';q++)
for(int i=0;i<k-1;i++){
for(int p=0;s[p+c]!='0';p++){
while(s[p+c]=='0')p++;
c+=(p+1);
}
}
for(int i=0;i<k;i++){
}
return 0;
}
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