#include <stdio.h>
int calc(int a,int b) {
int i,c=1;
if(b<0) b*=-1;
if(b==0) return 1;
for(i=0;i<b;i++) {
c=a*c;
}
return c;
}
int main(void) {
int a,b;
return 0;
}
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