#include<stdio.h>
 #include<string.h>
 #include<stdlib.h> 
 
 int main(){
 char str[100002];
   
 while( scanf("%s", str) ){
     if(str[0] == 'E'){
         break;
     }
  
     int i=0;
     int length = strlen(str); 
	if(str[0]=='-'){
		i = length- 1;	
		while(str[i]=='9'){
			i--;
		}
		if(i==0){
			str[0]='1';
		  printf("-%s\n",str);
			continue;		
		}
		else{
		  str[i] +=1;
      printf("%s\n",str);
      continue;
		}
	
	}
	else{
			 if(length < 2){
				 if(str[0] == '9'){
						printf("-19\n");
					}else{
						str[0] +=1;
						printf("-%s\n", str);
					}
					continue;
				} 

			if(length >= 2 && str[length-2] == '0'){
						i = length - 3;
						while(str[i] == '0'){								
									i--;								
								}
						str[i] +=1;
						str[length-2] = str[length-1];
						str[length-1]= 0;
						printf("%s\n", str);
						continue;
		//este zmaz nulu				
						}
				else{
						if(str[length-1] == '9'){
								i= length-2;
							 while(str[i]=='9'){
								i--;	
								}
							if(i == -1){
								printf("-1%s\n", str);
								continue;
							}
							str[i]+=1;
							if(str[i] == '0'){
									str[i] = '1';
							}							
							printf("-%s\n",str);
							
							continue;
						} 
						
						if(str[length-1] == '8'){
						printf("-%s\n",str);
										continue;		
										}
						str[length-1] +=2;
						str[length-2] -=1;
						printf("%s\n",str);

						

							} 
}
  
     }

	return 0;
}