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- #include <stdio.h>
- using namespace std;
- int main()
- {
- int prv,vtor;
- scanf("%d %d",&prv,&vtor);
- if(prv<=0 || vtor <=0) {printf("Invalid Input\n"); return 0;}
- int i=1, temp=vtor;
- while(temp/=10) i++;
- if(i%2==0)
- {
- while(prv && vtor)
- {
- if(prv%10 != vtor%10){printf("NEPAREN\n"); return 0;}
- vtor/=100;
- prv/=10;
- }
- puts((prv==0 && vtor>=0 && vtor<=9)? "PAREN": "NEPAREN");
- }
- else
- {
- vtor/=10;
- while(prv && vtor)
- {
- if(prv%10 != vtor%10){printf("NEPAREN\n"); return 0;}
- vtor/=100;
- prv/=10;
- }
- puts((prv==0 && vtor>=0 && vtor<=9)? "PAREN": "NEPAREN");
- }
- }
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