#include <stdio.h>
int main(void) {
// your code goes here
int i,k=0;
for( i=1; i<=5; i++)
{
switch(k%3)
{
case 1:
k = k + 7;
break;
case 2:
k = k + 2;
break;
default:
k = k+1;
}
}
return 0;
}
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