#include <stdio.h>

int main(void) {

  int i,j,poc,poccl,endc,cc;
  int counter,oper;

while(1) {
  scanf("%d %d\n", &endc, &poc);
  if((poc==0)&&(endc==0)) return 0; 
  oper=0;
  counter=1;
  for(i=0;i<poc;i++) {

     scanf("%d",&poccl);

     for(j=0;j<poccl;j++) {

       scanf("%d",&cc);
       if(cc!=counter) oper++;
       if(cc<counter) oper++;
       counter++;
            
     } 
  }
     if(oper!=0) {printf("We need %d move operations.\n",oper);}
     else printf("No optimization needed.\n");
}
  return 0;
}