import sys
import re

di = re.compile(r'.*(n|N)(y|Y)(o|O)[^a-zA-Z0-9]{0,3}$')
pe = re.compile(r'.*(n|N)(y|Y)(u|U)[^a-zA-Z0-9]{0,3}$')
ra = re.compile(r'.*[a-zA-Z0-9]+')
ge = re.compile(r'.*(g|G)(e|E)(m|M)(a|A)[^a-zA-Z0-9]{0,3}$')
pi = re.compile(r'.*(p|P)(y|Y)(o|O)[^a-zA-Z0-9]{0,3}$')

AC='CORRECT (maybe)'
WA='WRONG!'

def solve(pattern,s):
    if re.match(pattern,s):
        return True
    return False

for s in sys.stdin:
    if s=='\n':
        print(WA)
        continue
    words = s.split()

    flag = False
    if words[0]=='digi':
        if solve(di,words[-1]):
            flag=True
    elif words[0]=='petit':
        if solve(pe,words[-1]):
            flag=True
    elif words[0]=='rabi':
        if solve(ra,words[-1]):
            flag=True       
    elif words[0]=='gema':
        if solve(ge,words[-1]):
            flag=True        
    elif words[0]=='piyo':
        if solve(pi,words[-1]):
            flag=True
            
    if flag:
        print(AC)
    else:
        print(WA)