#import pdb; pdb.set_trace()
import sys
import math

def main():
    
    print "0 0"
    sys.stdout.flush()
    line = int(raw_input())
    
    if line == 0:
        sys.exit()
        
    print line + " 0"
    sys.stdout.flush()
    
    line2 = int(raw_input())
    
    if line2 == 0:
        sys.exit()
        
    nline1 = int(line)
    nline2 = int(line2) / 2

    print str(nline1 - nline2) + " " + int(nline2)
    sys.stdout.flush()
    sys.exit()
        
if __name__ == '__main__':
    main()