from collections import deque

def DFS(pos):
    global graph,delete
    rem=deque([(pos,-1)])
    use={pos}
    while len(rem)>0:
        now=rem[-1][0]
        ok=False
        for i,j in graph[now]:
            ok=True
            graph[now].discard((i,j))
            if i in use:
                delete.add(j)
                while rem[-1][0]!=i:
                    delete.add(rem[-1][1])
                    use.discard(rem[-1][0])
                    rem.pop()
            else:
                rem.append((i,j))
                use.add(i)
            break
        if not(ok):
            use.discard(rem[-1][0])
            rem.pop()

N,M=map(int,input().split())
graph=[set() for i in range(N)]
edge=[]
for i in range(M):
    U,V=map(int,input().split())
    edge.append((U,V))
    graph[U-1].add((V-1,i))
delete=set()
rem=[]
for i in range(N):
    DFS(i)
print(N,M-len(delete))
for i in range(M):
    if i not in delete:
        print(*edge[i])