import copy
n,m,t=map(int,input().split())
rs=[0 for _ in range(n+1)]
cs=[0 for _ in range(m+1)]
for _ in range(t):
    x,y=map(int,input().split())
    rs[x]+=1
    cs[y]+=1

def make(nums,number) -> int:
    mid=sum(nums)//number
    als=[0 for _ in range(number+1)]
    for x in range(1,number+1):
        nums[x]-=mid
    for x in range(1,number+1):
        als[x]=als[x-1]+nums[x]
    als.pop(0)`
    als.sort()
    ans=0
    for x in range(number):
        ans+=abs(als[x]-als[number>>1])
    return ans

def main() -> int:
    # pass
    if t%n & t%m:   # 无法操作
        print("impossible")
    elif t%n==0 and t%m==0:     # 都操作
        print("both {}".format(make(rs,n)+make(cs,m)))
    elif t%m==0:                # 列操作
        print("column {}".format(make(cs,m)))
    else:                       # 行操作
        print("row {}".format(make(rs,n)))
    return 0
main()